AP Physics 1 review of Torque and Angular momentum | Physics | Khan Academy

[@jasonoh8403]

It’s all so simple until AP Classroom asks a question about a rod attached to an axis with a string hanging which is attached to a pulley which is attached to a block, and there are no numbers

[@psych0-shorts]

LMFAOO

[@jayjo8665]

@@psych0-shorts not us watching this day before to cram 😭

[@psych0-shorts]

@@jayjo8665 LMAOOOO

[@psych0-shorts]

@@jayjo8665 did it for chem doing it for physics 😎

[@nlhn638]

Especially when your teacher doesn't actually teach you most of the AP stuff.

[@notkatelyn8734]

this is my least favorite ap physics 1 unit for sure

[@Aurora-ps2rg]

@Cade Bentlee why did u hack her insta

[@ieatgrass108]

@@Aurora-ps2rg they are both bots lmao.

[@thesuperiorinferior7844]

Didn't pay attention in class during the entire chapter except hearing a thing or two, watched this and took the test today, felt wonderful I think I may have gotten an A. There is one I know for sure I got wrong and know what I did wrong in hindsight. You know what they say, you're smart about something when you are able to tell when you're wrong.

[@prodbyp4]

how did u do

[@thesuperiorinferior7844]

@@prodbyp4 pretty sure I aced this test last year. Im studying for the AP Physics 2 exam now

[@prodbyp4]

@@thesuperiorinferior7844 nicee

[@nateblake6688]

I’m in the exact same situation rn😭 test is tomorrow and haven’t done any work

[@advancedstudy0]

Any new AP Physics updates @thesuperiorinferior7844 ?

[@alexrosales5832]

This is insanely useful

[@jennymathews4292]

As USAFA cadet currently on Academic Probation, thank you

[@Limbaugh_]

Havent paid attention all year let’s get this 3 tho baby

[@flootz6719]

you know how we do it

[@carolinemendell1963]

we just keep moving forward until all our exam scores are mediocre

[@patrickdoyal2950]

What y’all get

[@serenashah9630]

godsend. explained so well

[@chongchengxu8506]

Thank you Khan Academy for helping me understand! You are such a life-saver!

[@georgeredfern5526]

I really appreciate this video; I have an AP physics 1 final tomorrow and I needed a refresh on angular momentum. This video was perfect!

[@tune6000]

I’ve been on opium for the last ten days .

[@major9062]

whos here for the 2020 ap physics 1 test

[@准姬矢]

Lol I have 5 hours left

[@aidanshea3128]

@Michael Patton 2 hours until i go in

[@准姬矢]

@@aidanshea3128 damn wish you luck

[@summerblade3790]

good luck y’all

[@alyzaharris4810]

Good luck y’all. Don’t know what the heck I’m doing but Fuck it we ball

[@prequelanimations539]

cramming the day of the test

[@charliemartinez7595]

Very clear. Thanks.

[@MildSatire]

Who’s here for the 2021 AP Physics 1 Exam

[@thesuperiorinferior7844]

yezzir

[@MildSatire]

@@thesuperiorinferior7844 hell yeah

[@thesuperiorinferior7844]

@@MildSatire feeling confident?

[@MildSatire]

@@thesuperiorinferior7844 hell no

[@thesuperiorinferior7844]

@@MildSatire you got discord bro?

[@aidancole5611]

Test in 3 hrs let’s go

[@prehstawn3130]

test in 30 minutes lets gooo

[@aidancole5611]

@@prehstawn3130 you got this

[@yeme4438]

Same, goodluck to both

[@aidancole5611]

@@prehstawn3130 well that sucks

[@aryamankukal1056]

howd it go

[@stevenlin6106]

I wonder the I = 2/5 mr² is the inertia for ball not for sphere. In sphere’s case, it seems to me to be 2/3 mr², according to my calculation, and 2/5 mr² for ball.

[@musiclamar4458]

At 16:36, why is the inertia of the clay ball sticking to the rod not 1/3 ML^2 ?

[@jarreddrickler298]

rotational inertia = mr^2; in this case length=r

[@musiclamar4458]

Jarred Drickler oof that reply after physics exam

[@trevorwallace3266]

Because you’re treating it as a point mass moving around the axis

[@aryanshahu6167]

Because the total inertia is the inertia of rod + point mass so 1/3 3ML^2 + ML^2 is the total inertia

[@lightningmeteor8757]

11:05 how did you get 1 for summation of torque if counterclockwise is positive, so wouldn't it be 3-4 = -1??

[@medivald2]

The direction is negative. However, the magnitude of the acceleration is positive because the rod begins to accelerate rather than deaccelerate

[@parky7417]

its asking for magnitude so it didnt really matter. just looks cleaner. it would be negative if it wasnt asking for magnitude

[@celes-p]

praying to at least pass this exam T-T

[@twilightbird2842]

ap in 2 days tysm for this

[@I-used-to-be-orcaz]

praying for a 4

[@prakhyatkethamukkala2145]

at 10:39 aren't both force vectors still counter clockwise??? I think im stupid

[@prakhyatkethamukkala2145]

im stupid nvm

[@iqrakhanamansari8670]

Is this 12th grade physics in USA??

[@will_mcdermott]

10-12th

[@YurFaceMakesMeBarf]

@@will_mcdermott 9th-12th*

[@will_mcdermott]

@@YurFaceMakesMeBarf people have different counties

[@aryamankukal1056]

ppl usually take it in 11th

[@gamingseizure]

Me when my teacher for AP Physics 1 only has a degree in history

[@sarpyalcn4074]

tomorrow i will take my final exam, i'm on the edge of failing. wish me luck

[@nabeeladam3045]

any way we can download these notes ?

[@carultch]

On my computer, there's a "print screen" button, which takes a picture of whatever shows up on a screen, and stores it in memory. Then I can CTRL+V in an image program and save a copy of my screen as an image file. Look up "how to take a screenshot on a __computer type___", if you don't have this button.

[@benjamin4624]

Anyone here before the 2022 AP physics test

[@LeanVolcano]

Mine is in a couple hours and I don't think I've ever seen this unit before, we're gonna do great. And then AP Physics 2 the day after....

[@zoetarrach8301]

taking the exam in 3 hrs gang please rise✊✊

[@orang1921]

who's here for the 2023 AP Physics 1 exam? i know i am