[填空题]
A sphere of radius 20.0 cm exl3 w)(yxwu3and massbif4 s df)n+8l 1.80 kg starts from rest and rolls without slipping down a i 4ndfb+l8s)f 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
