[填空题]
A merry-go-round has a do56wt/ a l /vd )a2 behfk2p2o;wh1cmmassaw8g m:oa*c m3 of 1640 kg and a radius of 7.50 m. How much net work is required to accelerate it from rest to a rotation rate of 1.00c8m ogwm3*a a: revolution per 8.00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
