[填空题]
A merry-go-round has a mass of 1/h)zq2 nxsn1j 2 n5/3wnrodcr640 kg and a radius of 7.50 m. How much:e7 groc* u8/q*) n6qcggiyphp + d:jg net work is reqnghdp76+c8r **p:qgj ec /o:yqu )igguired to accelerate it from rest to 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
