[填空题]
A teenager pushes tangentialfqd/kx1:1n m oly on a small hand-driven merry-go-round and is abl eyrc19w+1a fb.zb.h le to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume bw +bz.hc ey9.fal1r1the 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 torque. $\approx$ $m \cdot N$ What force is required at the edge? N
