[填空题]
A hollow cylinder (hoopk) sl 0jqy+ yr4z6/urq) iqf2rm+ pgpyhq z7 mzx qjm;;x +g,uq0z5* lg7)s rolling on 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
