- #1

Prodan

- 1

- 0

a) What is the net force acting on the small sphere? (I said gravity but was not sure)

b) How long will it take the ball to hit the ground if released?

c) Calculate the Initial Kinetic Energy given the final Kinetic engery is 12000 J. (I think this was the phrasing of last question)

At first I thought of using the

mgh + 1/2I(Inertia)w(Angular vel)^2 = 1/2mv^2(1+ I(Intertia of Centre of Mass) / MR^2)

We are not given intertia though? or did i remember this incorrectly perhaps? Would it make more sense to have intertia?

I am truley stumped, any help would be awesome.

Kevin