[填空题]
A teenager pushes tangentially on a small hand-driven merry-go-rounvyn 1-xye 56ebd d+blc9e7hz :+u 0ac wpand 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 +he+awz 7lc b9pdu:c 0the acceleration, neglecting frictional torque. $\approx$ $m \cdot N$ What force is required at the edge? N