Kinematika in dinamika sta osnova za razumevanje gibanja v fiziki.... Show more
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Updated May 14, 2026
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Kinematika in dinamika sta osnova za razumevanje gibanja v fiziki.... Show more








Predstavljaj si, da opazuješ dirkalni avtomobil - kinematika te uči, kako izmeriti njegovo hitrost in pot, dinamika pa razloži, zakaj potrebuje tako močan motor za pospeševanje.
Kinematika se ukvarja z opisom gibanja brez spraševanja o vzrokih. Dinamika pa raziskuje sile, ki povzročajo spremembe v gibanju. To znanje potrebuješ za razumevanje delovanja vse od avtomobilov do robotov.
Ključni pojmi, ki jih moraš obvladati: gibanica (materialna točka, ki zanemarimo velikost), tir (pot gibanja), pot (s), hitrost (v) in pospešek (a). Pri hitrosti razlikuj med povprečno $\bar{v} = \frac{\Delta x}{\Delta t}$ in trenutno hitrostjo.
Pozor: Pospešek lahko pozitiven (pospeševanje) ali negativen (zaviranje)!

Ko gurneš težko omaro, občutiš, kaj pomeni sila - vzrok za spremembo gibanja. Sila (F) se meri v newtonih (N), kjer 1 N = 1 .
Masa (m) je mera za vztrajnost telesa - koliko se upira spremembam gibanja. Merimo jo v kilogramih in se ne spreminja ne glede na lokacijo. Teža (Fg) pa je sila, s katero Zemlja privlači telo: Fg = m × g.
Pomembno je razumeti razliko med maso in težo. Tvoja masa ostane enaka na Luni, teža pa bo šestkrat manjša zaradi manjše gravitacije.
Ključno razlikovanje: Masa je lastnost snovi, teža je sila!

Glede na hitrost in pospešek razdelimo enakomerno gibanje in enakomerno pospešeno gibanje .
Za enakomerno gibanje velja preprosta enačba: s = v × t. Za pospešeno gibanje pa potrebuješ tri ključne formule:
Hitrost po času t: . Pot po času t: . Torricellijeva enačba (brez časa): .
Te enačbe so tvoji najboljši prijatelji pri reševanju nalog iz kinematike.
Nasvet: Torricellijevo enačbo uporabi, ko ne poznaš časa!

Prvi Newtonov zakon (vztrajnost): Telo ohranja stanje mirovanja ali enakomernega gibanja, dokler ga zunanja sila ne prisili k spremembi. Hokejski plošček na ledu je odličen primer.
Drugi Newtonov zakon je najpomembnejši: . Večja sila pomeni večji pospešek, večja masa pa pri isti sili manjši pospešek. Smer pospeška je enaka smeri rezultante sil.
Tretji Newtonov zakon : Sile vedno nastopajo v parih. Ko brcneš žogo, tvoja noga deluje na žogo, žoga pa z enako silo nazaj na tvojo nogo.
Pomembno: Sili akcije in reakcije delujeta vsaka na svoje telo, zato se ne izničita!

Avto spelje iz mirovanja in v 10 sekundah doseže 72 km/h. Izračunajmo pospešek in pot.
Najprej pretvori enote: 72 km/h = = 20 m/s. Začetna hitrost v₀ = 0 m/s, končna v = 20 m/s, čas t = 10 s.
Pospešek: Iz v = v₀ + at dobimo: 20 = 0 + a × 10, torej a = 2 m/s². Pot: Iz s = v₀t + at² dobimo: s = 0 + × 2 × 100 = 100 m.
Odgovor: Pospešek je 2 m/s², pot pa 100 m.
Pozor na enote: Vedno pretvori km/h v m/s z deljenjem s 3,6!

Zaboj (50 kg) potiskamo s silo 200 N, trenje pa znaša 50 N. Kolikšen je pospešek?
Analiza sil: Potisna sila 200 N deluje v smeri gibanja, trenje 50 N v nasprotni smeri. Rezultanta sil: Frez = 200 N - 50 N = 150 N.
Uporabimo drugi Newtonov zakon: F = ma, torej 150 = 50 × a. Pospešek a = = 3 m/s².
Pri reševanju tovrstnih nalog je koristno narisati diagram sil, da ne pozabiš nobene.
Diagram prostega telesa: Nariši vse sile, ki delujejo na telo - to ti bo pomagalo pri reševanju!

Osnovne formule, ki jih moraš obvladati: Enakomerno gibanje s = v × t, pospešeno gibanje v = v₀ + at in s = v₀t + at², dinamika F = ma.
Newtonovi zakoni: Vztrajnost , F = ma (sila povzroči pospešek), akcija-reakcija (sile v parih).
Praktični nasveti: Vedno pretvori v SI enote pred računanjem, razlikuj med maso in težo, pozor na smer sil in rezultanto sil.
Zapomni si pravilo 3,6 za pretvorbo hitrosti: iz km/h v m/s deliš s 3,6, obratno pa množiš.
Za teste: Obvladaj pretvorbo enot, diagram sil in razlikovanje med kinematiko in dinamiko!
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
You can download the app in the Google Play Store and in the Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
Kinematika in dinamika sta osnova za razumevanje gibanja v fiziki. Kinematika opisuje, kako se telesa gibljejo, dinamika pa pojasnjuje, zakaj se gibljejo in kaj povzroča spremembe v gibanju.

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Predstavljaj si, da opazuješ dirkalni avtomobil - kinematika te uči, kako izmeriti njegovo hitrost in pot, dinamika pa razloži, zakaj potrebuje tako močan motor za pospeševanje.
Kinematika se ukvarja z opisom gibanja brez spraševanja o vzrokih. Dinamika pa raziskuje sile, ki povzročajo spremembe v gibanju. To znanje potrebuješ za razumevanje delovanja vse od avtomobilov do robotov.
Ključni pojmi, ki jih moraš obvladati: gibanica (materialna točka, ki zanemarimo velikost), tir (pot gibanja), pot (s), hitrost (v) in pospešek (a). Pri hitrosti razlikuj med povprečno $\bar{v} = \frac{\Delta x}{\Delta t}$ in trenutno hitrostjo.
Pozor: Pospešek lahko pozitiven (pospeševanje) ali negativen (zaviranje)!

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Improve your grades
Join milions of students
Ko gurneš težko omaro, občutiš, kaj pomeni sila - vzrok za spremembo gibanja. Sila (F) se meri v newtonih (N), kjer 1 N = 1 .
Masa (m) je mera za vztrajnost telesa - koliko se upira spremembam gibanja. Merimo jo v kilogramih in se ne spreminja ne glede na lokacijo. Teža (Fg) pa je sila, s katero Zemlja privlači telo: Fg = m × g.
Pomembno je razumeti razliko med maso in težo. Tvoja masa ostane enaka na Luni, teža pa bo šestkrat manjša zaradi manjše gravitacije.
Ključno razlikovanje: Masa je lastnost snovi, teža je sila!

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Glede na hitrost in pospešek razdelimo enakomerno gibanje in enakomerno pospešeno gibanje .
Za enakomerno gibanje velja preprosta enačba: s = v × t. Za pospešeno gibanje pa potrebuješ tri ključne formule:
Hitrost po času t: . Pot po času t: . Torricellijeva enačba (brez časa): .
Te enačbe so tvoji najboljši prijatelji pri reševanju nalog iz kinematike.
Nasvet: Torricellijevo enačbo uporabi, ko ne poznaš časa!

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Prvi Newtonov zakon (vztrajnost): Telo ohranja stanje mirovanja ali enakomernega gibanja, dokler ga zunanja sila ne prisili k spremembi. Hokejski plošček na ledu je odličen primer.
Drugi Newtonov zakon je najpomembnejši: . Večja sila pomeni večji pospešek, večja masa pa pri isti sili manjši pospešek. Smer pospeška je enaka smeri rezultante sil.
Tretji Newtonov zakon : Sile vedno nastopajo v parih. Ko brcneš žogo, tvoja noga deluje na žogo, žoga pa z enako silo nazaj na tvojo nogo.
Pomembno: Sili akcije in reakcije delujeta vsaka na svoje telo, zato se ne izničita!

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Avto spelje iz mirovanja in v 10 sekundah doseže 72 km/h. Izračunajmo pospešek in pot.
Najprej pretvori enote: 72 km/h = = 20 m/s. Začetna hitrost v₀ = 0 m/s, končna v = 20 m/s, čas t = 10 s.
Pospešek: Iz v = v₀ + at dobimo: 20 = 0 + a × 10, torej a = 2 m/s². Pot: Iz s = v₀t + at² dobimo: s = 0 + × 2 × 100 = 100 m.
Odgovor: Pospešek je 2 m/s², pot pa 100 m.
Pozor na enote: Vedno pretvori km/h v m/s z deljenjem s 3,6!

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Zaboj (50 kg) potiskamo s silo 200 N, trenje pa znaša 50 N. Kolikšen je pospešek?
Analiza sil: Potisna sila 200 N deluje v smeri gibanja, trenje 50 N v nasprotni smeri. Rezultanta sil: Frez = 200 N - 50 N = 150 N.
Uporabimo drugi Newtonov zakon: F = ma, torej 150 = 50 × a. Pospešek a = = 3 m/s².
Pri reševanju tovrstnih nalog je koristno narisati diagram sil, da ne pozabiš nobene.
Diagram prostega telesa: Nariši vse sile, ki delujejo na telo - to ti bo pomagalo pri reševanju!

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Improve your grades
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Osnovne formule, ki jih moraš obvladati: Enakomerno gibanje s = v × t, pospešeno gibanje v = v₀ + at in s = v₀t + at², dinamika F = ma.
Newtonovi zakoni: Vztrajnost , F = ma (sila povzroči pospešek), akcija-reakcija (sile v parih).
Praktični nasveti: Vedno pretvori v SI enote pred računanjem, razlikuj med maso in težo, pozor na smer sil in rezultanto sil.
Zapomni si pravilo 3,6 za pretvorbo hitrosti: iz km/h v m/s deliš s 3,6, obratno pa množiš.
Za teste: Obvladaj pretvorbo enot, diagram sil in razlikovanje med kinematiko in dinamiko!
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
You can download the app in the Google Play Store and in the Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user