[填空题]
A hollow cylinder (hoop) is rolling on a zs)1 vivc,v4i8+zkf2yi j8 on horii y ; dnop6tk1dt9 3c5xual+x(zontal 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
