[填空题]
A merry-go-round has a8 n5w1ht(uliiym 4xjeg4 1n8 j mass of 16bhe:h9xiho:dx6 5d w740 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 it is a solid cy :7dhoxw59 xebh id6:hlinder. J
Post time 2025-2-18 20:00:22
