[填空题]
A hollow cylinder (hoopb o2.q6lalypda nq7:0r-9dyk ) is rolling on a horizontal surface at speed v=3.3 :*:/d x6iybu)jkcmsq(kda 7o$m/s$ 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
