[填空题]
A merry-go-round has a mass of 16s yf2lo )hww9oox;2wk 5)tr5:ewng.t d)v )63djayskfj7 zq840 kg and a radius of 7.50 m. How much net work is required to accelerate it from qf) djv) z68jak 3yd7srest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J