[填空题]
A hollow cylinder (hoop)yi3)3a4pjs9 -(t nf5y f jnaqm is rolling on a hori r :hf .zyczs4yp3qj 95i0 ;o:ytv1cuzzontal 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
