[填空题]
A merry-go-round has a mass of 1640 kg and a radius of 7.50 m. How much n58 (wqpzrlv w*et woeclb lw *nw c9*ncioz2 7*cj-,rkew woc *i9 cj ,*lc-cz72ln*nb is required to accelerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J