A teenager pushes tangentially on a small hand-drivenmerry-go-round and is able to accelerate it from rest to afrequency of 17 rpm in 9.7 s. Assume the merry-go-roundis a uniform disk of radius 2.1 m and has a mass of680 kg, and two children (each with a mass of 30 kg) sitopposite each other on the edge.
What is the torque required to produce the acceleration,neglecting frictional torque.
What force is required at the edge?