[填空题]
A hollow cylinder (hoop) is rolling on a u3 ds m;)rj.0oca/zvoy g(p s3z+tm7 ehorizoz w-a ,pen6fy d(zr7l:u1f7vhd. gizof/u3m-ntal 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
