Q$7-$

$($ points$)$ Starting from rest,

a basketball rolls from the top of a hill to the bottom, reaching a translational

speed of $6\mathrm{.}6$ m$/$s$.$ Assume that the basketball is a hollow sphere, and that there's no friction or air resistance.

$($a$)$ What is the height of the hill?

Wo $=0$

Your answer with S$.$ I. units:

$($b$)$ Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can when it reaches the bottom?