[填空题]
A merry-go-round has a mass4j d6.m dkitca 2h 99xvk5rug-2ywe 5j of 1640 kg and a radius of 7.50 g5b6au b6 :mgrm. How much net work is required to ac6 r:5m bug6bgacelerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
