[填空题]
A merry-go-round has a mass o ta8h(3a;7 * erpexjrtf 1640 kg and a radius of 7.50 m. Howek 9 h3mx 90onvhzw*6r much net work is required to accelerate it oh9 kzvwe6*9x0 rhmn3 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
