Circular Motion Questions

[Gutsyndicate]

shouldn't @ 1:31 be T = Mv^2/r-mg then when you factor the m, it becomes

m( V^2/r-g)

[MrMovieCast]

ok guys how do you do question 1? =P

[MrMovieCast]

@MrMovieCast sorry guys my bad -.-

[azerion66]

For question 2, you say the maximum speed of the mass before it breaks right?

So you take the speed at the bottom?..

When you take the speed at the top you get 8.92

And 8.92>7. whatever the hell wrong answer you got..

I can understand the meaning of these videos but they just plain confused me before my exam ¬_¬.

[007dardan]

Your accuracy in question (4) Is terrible.... V= 26.6 so how comes in the answer you randomly chose to include 28ms-1 ?

CORRECT ANSWER = .... (26.6^2/20)/9.81...+1 which gives you 4.6 G's ;)

[JpSena021]

hei bro where did u get 135N in qstion 2? its supposed to be 125N right?

[DartmouthAlum96]

@JpSena021 You're correct.  It's supposed to be max. tension of 125 N.

[Devanshu300]

i think the 5&10 questions r rong hw can the W b cons tant throughout wen the velocity is not

[Xeletics]

this vid saved my life

- Holy Trinity student

[PinkyFromPK]

bravo bravo.

excellent.

keep posting.

[Xsander1D]

I think answer to the second question isn't exactly right (instead of T=125, T=135 was used) A really helpful video though, Thanks for posting.

[iMiXiMi]

Wow, was just searching and found these. I go to AOB in Edmonton

[17konstanz]

Please post more physics questions with answers, they are really helpful x)

[mcclainman2005]

what no comments?? lol

[1carlento]

thnx for posting