[填空题]
A sphere of radius 20.0 6ckysosq0 pl/hg d x:u(k o517cm and mao7ql 3zqxg+x1 t8cvd 61 y(mwpss 1.80 kg starts from rest and rolls without slq p38x (+1mtzl o 6gvcwd1yq7xipping 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?