Circular Motion Questions

Science, Physics 20, Wagner High School, Edmonton, Alberta, Canada, Mr. Burns, Mr. Marshall

Category:

Education

Tags:

• Circular
• Motion
• Questions

[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?

[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]

@MrMovieCast sorry guys my bad -.-

[MrMovieCast]

ok guys how do you do question 1? =P

[DartmouthAlum96]

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

[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 ¬_¬.

[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