[填空题]
A teenager pushes tangentially on a sml wm ix/xebcgok0g29/0z f09mall hand-t39fba0 +h vfig3 g ptp126c)vyo k1uhdriven merry-go-round and is able to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume the m ippgt3gt)bu9f3ay1f21 kh vo 0v6h c+erry-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 torque. $\approx$ $m \cdot N$ What force is required at the edge? N
