[填空题]
A merry-go-round has a mass of 1640 kg anohz*ad);4sy. ;(tcjip n7ikvd a ( ran zx1)lb7wradius 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 ibrxnw7)z1 l( as a solid cylinder. J
Post time 2025-2-18 20:00:22
