[填空题]
A merry-go-round has a mass of 1640 kg and a radiu jz5;(fja qe:c m45swssmm7sds 7,c,uh of 7.50 m. How much net work is required to d,7cmsm 7hs u,accelerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J