[填空题]
A merry-go-round has a mass of 1640 e/c6,/6 ghmy qhhm 7jbye ;y5xkg and a ra9y;,nlw9ho q vdius of 7.50 m. How much net work is required to accelerate it from rest to a rotation rate ynvq ;o9wl,h 9of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
