[填空题]
A sphere of radius 20.0 cme+0n3lo: ,f p-otqh.sm .dzzvnr :v 12qx)dpz and mass 1.80 kg starts e: khi; i+6v49o w fuio)ik:dvfrom rest and rolls without slip+ iv6d i):vkwi9ko;e4uo fhi:ping 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
