[填空题]
A hollow cylinder (hoop) is rolling on a horizo,;esp-xe:wlkednv t1 .qf ;a cue6/a(ntal surface at speed hx g 63(rhh.+b:ff syipus8fg3e o1o (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
