[填空题]
A merry-go-round has a mass of 1640 kgxgz6n; /sl7lm and a raq v uqsr,pa.6phhk4;u,cn r,)dius of 7.50 m. How much net work is required to accelerate it from rest to a rotation rate ofv.uqpp ,c )hu,r,r 6an h;s4qk 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
