Please don't write in cursive.

14. Suppose you exert a force of 180 N tangential to a 0.280-m-radius 75.0-kg grindstone (a solid disk). A)what torque is exerted? B) what is the angular acceleration assuming negligible opposing friction? C) what is the angular acceleration if there is an opposing frictional force of 20.0N exerted 1.50 cm from the axis?

39. A playground merry go round has a mass of 120kg and a radius of 1.80 m and it is rotating with an angular velocity of 0.500 rev/s. What is the angular velocity after a 22.0-kg child gets onto it by grabbing its outer edge? The child is initially at rest.