A solid sphere of radius 35 cm is positioned
at the top of an incline that makes 20 ◦
with the horizontal. This initial position of
the sphere is a vertical distance 3.4 m above
its position when at the bottom of the incline.
The sphere is released and moves down the
incline. 35 cm
Find the speed of the sphere when it reaches
the bottom of the incline if it rolls without
slipping. The acceleration of gravity is
and the moment of inertia of a sphere
with respect to an axis through its center is
Answer in units of m/s.