[填空题]
A merry-go-round has a mass off*)ghr;:lwh;rwt v j5 1640 kg and a radius of 7.50d*+pqu gyko:l*txd:la 8y i n o9oo9-7 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 so+ ud*yooo igo -q9d*:t9yx 8lp 7lank:lid cylinder. J
Post time 2025-2-18 20:00:22
