[填空题]
A merry-go-round has a mass of 1640 kg and a rm2: ,bj /sp-b9mtfviwadius of 7.5r2e; b,,obc v)bv4 cbs0 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 s;reb,b4v,b ) o c2bvcis a solid cylinder. J
Post time 2025-2-18 20:00:22
