[填空题]
A merry-go-round has a mass of 1640 kg and a radm(ir e 1x4 /vio+k6 *wmgb0zci e .:k(o hpihbul:irl p;c-19qius of 7.50 m. How much net work is required to acce 9 c-pi .bihulkq:1hlo(pre:;lerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
