AP Physics 1 review of Momentum and Impulse | Physics

AP Physics 1 review of Momentum and Impulse | Physics | Khan Academy

Рет қаралды 149,146

8 жыл бұрын

In this video David quickly reviews the momentum and impulse topics on the AP Physics 1 exam and solves an example problem for each concept. Created by David SantoPietro.
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Пікірлер: 45

@FreePalestine12341 7 жыл бұрын

At 5:40, you solved for momentum, but it asks to solve for velocity. -40kg*m/s needs to be divided by the 2kg that the rocket weighs. that'll give you the answer -20m/s.

@PamKitsuwan 7 жыл бұрын

Thanks for saying this. :)

@rjk368 7 жыл бұрын

I agree - I was very confused because I did it multiple ways and got -20 m/s until I realized this! Also, I think that the video would have been much more helpful if the answers weren't shown straight away, giving us a chance to solve for the answer and then check as he does the work.

@prachisharma8076 6 жыл бұрын

Thanks for pointing this out! I should thank you for this!

@iqarchnet6517 6 жыл бұрын

I was about to go down to the comment section and say this but you said it for me thanks!

@saicharanmandadi8531 6 жыл бұрын

Yea I noticed that too

@MrGnome-ng6jv 5 жыл бұрын

good luck tomorrow bros

@MadeByIsmael 5 жыл бұрын

I wish you all good luck guys! Im just aiming for a 4

@ieatgrass108 3 жыл бұрын

Nah you gotta aim for a 5

@Dunger974 Жыл бұрын

Did u get a 4?

@pingpong293 5 жыл бұрын

WHO ELSE IS BINGING ALL THESE VIDS FOR TOMORROWS EXAM!!!!!

@WaddleDeeKnows 5 жыл бұрын

Ykwtfgo it’s 4 SZN 😈

@MN-wi1pr 3 жыл бұрын

how'd it go

@clinged2711 2 жыл бұрын

I have it today in 12 minutes, I hate myself 😐

@mysteryplayer4723 2 жыл бұрын

@@clinged2711 how much did u get bro

@aki_477 2 ай бұрын

HERE IN 2024 IM TAKING THE EXAM IN 33 HOURS WIS ME LUCK

@AwesomRandomVids 7 жыл бұрын

Very helpful, thank you!

@chineduejeh8948 3 жыл бұрын

Thanks for the review, very effective!

@MTNguyen1999 2 жыл бұрын

Thank you for helping me to understand the chapter deeply

@maxmustermann3925 4 жыл бұрын

Nice, good stuff!

@meghananadella1570 6 жыл бұрын

At 10:12 your answer choices should be vx and vy, instead you only have vx values. But great video overall, thank you!

@sushinuggeto8262 3 жыл бұрын

Love this guy

@sorangelr 7 жыл бұрын

For the Elastic and Inelastic problems, the explanation makes sense but the calculations indicate that kinetic energy is conserved. I'm confused. Based on my calculations, KE = 2MV^2 before and after collision.

@samarthk4130 3 жыл бұрын

KE before for mass m is positive 18, not negative, because you're squaring the negative 6 to make it positive