[填空题]
A merry-go-round has a mass of 1640 kg a1jfwm7;)x 8 hr+bkjot2lu b0hndkbbyp)s r9:f6, a1ht t 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 it is a solid cylh9p6 trtasybbkf,1) : inder. J
Post time 2025-2-18 20:00:22
