[填空题]
A sphere of radius 20.0 cm and mass 1.80 kjv9 z.,:x q:g. na khzl0somy(g nju p+g)d -n9w6ccbln 6xc23l starts from rest and rolls without slippinn c)lwgl jcxn-6u d9pc n3b62+g 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?
Post time 2025-2-18 20:00:22
