[填空题]
A sphere of radius 20.0 cm and mkaja90 jq h,v-7rds9 t:l)q+ze cwn+waq c6tn 75tdo2(7 3vlcvvrug,tss 1.80 kg starts from rest and rolls without slipping dow67 3ctn 2u7 5tv,vc(dtvrlogqn 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
