[填空题]
A sphere of radius 20.0 cm and mass 1ztrufkm9vvvi7 4)2v6a+u y- n.80 kg starts from rest and rolls withlg uoz3q,tn ;a 9wsl1wl4xs 8-out sliw -z83 u1wtl,a gxsqo; s4nll9pping down a 30.0 $^{\circ} $ incline that is 10.0 m long.
(a) Calculate its translational and rotational speeds when it reaches the bottom. $v_{CM}$ = $\omega$ = $rad/s$
(b) What is the ratio of translational to rotational KE at the bottom? Avoid putting in numbers until the end so you can answer:
(c) do your answers in (a) and (b) depend on the radius of the sphere or its mass?
