Aparent pushes a balanced frictionless playground merry-go-round. the parent exerts a force f tangent to the merry-go-round resulting in a torque of 240 n . m, the distance between the center of the merry-go-round and the point of application of the force is 1.6 m. (b) what, if any, is the magnitude of the horizontal force exerted by the merry-go-round on the man?

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.