[填空题]
A teenager pushes tangentially on a smjf4k b1,1ic+rw yn-)hqac *d call hand-driven merry-go-round and is able1nb) d,1jq afk4ichcywr-+c*s5x/a 1ezcxm l 0p,rcyahd86., *hgvt to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume the merry-go-round is a uniform disk of radius 2.5 m and has a mass of 760 kg, and two children (each with a mass of 25 kg) sit opposite each other on the edge. Calculate the torque rc1 ,c*h /ar,hvx6lgmas0 5dtx8yz .pe equired to produce the acceleration, neglecting frictional torque. $\approx$ $m \cdot N$ What force is required at the edge? N
Post time 2025-2-18 20:00:22
