[填空题]
A merry-go-round has a mass of 1640 kg and a radius o nyva23z3dy;rf 7.50 m.zazwfgomw b78 )gw*fj6 r:r(4 How much net work is required to accelerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume m:a w(j*gf8)b 4o rfwgz7wr6 zit is a solid cylinder. J