In the figure below, a solid cylinder of radius 6 cm and mass 9 kg starts from rest and rolls without slipping a distance L = 6.0 m down a roof that is inclined at angle ? = 30°.
(a) What is the angular speed of the cylinder about its center as it leaves the roof?
________rad/s
(b) The roof's edge is at height H = 5.0 m. How far horizontally from the roof's edge does the cylinder hit the level ground?
_________m