[填空题]
A teenager pushes tangentially on a small hvaco /zv 0t*,;tsmoavd4 * i4gand-driven merry-go-round an /f.siz)- biky+cg zhpcpug,))s ( my9a.s3 txd is able to accelerate it from rest to a frequency of 15 rpm in 10.0 s. Assume the merry-go-round is a unifoszby3g- ph/u gcftiy,(sz ).))kmcp ax+ si9 .rm 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