[填空题]
A hollow cylinder (hoop) is rollf6r06u( wr:r p2ddl 5c.cslsh ing opl;9 0 bh *dqslavbf63n a horizontal 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
