Question

1) Assuming that momentum is conserved in each collision, which of the following will be perfectly inelastic? A) Two billiard balls collide on a pool table. B) A hawk catches its prey in midair.

2) Find the moment of inertia for a spherical shell that rotates about a point on its surface. A) (3.2) MR^2

B) (5/3)MR^2

3) A solid wooden door has a mass of 40 kg, a height of 2.3 m, and a width of 1 m. Determine the moment of inertia for the rotating about its hinges.

4) When switchedd on, a CD player will rotate a CD from rest to 500 r.p.m in 1.75 s. How many revolutions will the CD make during this 1.72 s?

Answer 1