[填空题]
A teenager pushes tangent/o z6hmg 1ii 0tdjum kmt:1eqka/32a4i1m,*d;nb c51l4nx7le oiag m lally on a small 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 onamcxo4il1n emgll5n,1d ; 7*b 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