[填空题]
A merry-go-round has a(f1h+cl r9;o/fqspnj ;v b6ao ntk25h 9xyb35 x2o-s::gp lvq9lctea mass of 1640 kg 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 8.00 s? Assume x :elsa9cy -bl: qgv9pxo2t53it is a solid cylinder. J
Post time 2025-2-18 20:00:22
