[填空题]
A merry-go-round has a mass ofkmt +qept/7h3 1640 kg and a r -7poyy.3bnrjc)0ga eadius of 7.50 m. How much net work is required to accelerate it from rest cryb-o) 0p3 .ea7ng yjto a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
