[填空题]
A merry-go-round has a mass of 168(pcq .mxnq pd--o0m i40 kg and a radius of lrpu8, 2y*mh+zl1 ol s7.50 m. How much net work is required to accelerate it from rest to a rotation rate of 1.00 revolution per 8.00 +plm*1hrzusyl o82l, s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
