[填空题]
A sphere of radius 20.0 cm/u*a4 2vk,blvzaxmy. 7 ,vteu:m0ox1vavtmtf u hwf 7+1:8xo and mass 1.80 kg starts from rest and rolls without slipping down u:mv7f x:xot,hm08+avove f1u7w 1t ta 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?
Post time 2025-2-18 20:00:22
