[填空题]
A sphere of radius 20.0 cm b6 uq.njf2-f4wgc hy/ and mass 1.80 kg starts frbcrps8j2kfy2, ) kh3. /ccgqn om rest and rolls without slip jrqsf,./pkgccynk 28 hb )32cping down a 30.0 incline that is 10.0 m long.
(a) Calculate its translational and rotational speeds when it reaches the bottom. = = (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?