[填空题]
A teenager pushes tangentially on a ,2cx58gh ro f8tk1kf iym u2v.small hand-driven merr2: fl8, wg l7dvgxtpx1y-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 acceleratio df1,2xlptx gv :l7wg8n, neglecting frictional torque. $\approx$ $m \cdot N$ What force is required at the edge? N