[填空题]
A sphere of radius 20.0 cm ijriz,-ms46oint d8 )and mass 1.80 kg starts from rest and rollsqmi z7zf,qspo,m0r1 0xe*j2 7sa vz5r without slipping down a,s ezsq0mvoj2r1aqrzm , 7x0iz57p* 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
