A merry go-round in the park has a radius of 1.8 m and a rotational inertia of 900 kg m2. A child pushes the merry go-round with a constant force of 80 N applied at the edge and parallel to the edge. A frictional torque of 12 Nm acts at the axle of the merry-go-round. a. What is the net torque acting on the merry-go-round b. What is the rotational acceleration of the c. At this rate, what will the rotational velocity of the d. What is the rotational acceleration of the merry-go- about its axle? round? merry-go-round be after 15 s if it starts from rest? round if the child stops pushing after 15 s? How long merry-go- will it take for the merry-go-round to stop turning?