[填空题]
A merry-go-round has a mass+o0; fntst3b r of 1640 kg and a radiusl,j(q5q2ewb0g;; xfmgrb2e, op s 2hv of 7.50 m. How much net work is required to accelerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid f job(ep22 0ml,sqg,bvxg;e5h ;w rq2 cylinder. J
Post time 2025-2-18 20:00:22
