[填空题]
A merry-go-round has a massivz t0t .0;lnc of 1640 kgzdkdr y8-/-nk* xn,fj and a radius 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 is a solid c -8ndrfnxz-yd/j k,k* ylinder. J
Post time 2025-2-18 20:00:22
