[填空题]
A merry-go-round has a q6 wf2i t j vm,l(gtkr 9:t5/1o:rlhaoma/jux*ru6 y/ gcz;zesw :fkv1.ss of 1640 kg and a radius of 7.50 m. How much net work is required to accelerate itxv*uy r/.zzk:jcs we u6/;g 1f from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J