[填空题]
A teenager pushes tangentid n,v2.nm3n 5a9brfwr00 gdsially on a smav2 j: imkor)4v1hmy3wll hand-driven merry-go-round and is able 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 required to produce the acceleration, neglecting frictional torq mm:h3vy)jkv 21wri4 oue. $\approx$ $m \cdot N$ What force is required at the edge? N