[填空题]
A merry-go-round has a mass of g-.nyb 26 ecoa1640 k(5 /phppzgup o8wws /.g and a radius of 7.50 m. How much net work is required to accelerate it from rest to a rotation rate of 1.00 revolution per 8./o8h.p5s (wpuz p/ gwp00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
