[填空题]
A hollow cylinder (hoop) i,8 b5 y eoje g)ny9d//aaikmarv+7o 9fs rolling on a horizontaunqlspob9b,,n fva27 sg:z6)l surface at speed v=3.3 $m/s$ when it reaches a 15 $^{\circ} $ incline. (a) How far up the incline will it go? $\approx$ m (round to one decimal place) (b) How long will it be on the incline before it arrives back at the bottom? s
Post time 2025-2-18 20:00:22
