The upper end of a light rope of length L = 0.600 m is attached to the ceiling, and a small steel ball with mass m = 0.200 kg is suspended from the lower end of the rope. Initially the ball is at rest and the rope is vertical. Then a force F with constant magnitude F = 0.760 N and a direction that is maintained tangential to the path of the ball is applied and the ball moves in an arc of a circle of radius L. What is the speed of the ball when the rope makes an angle a = 37.0° with the vertical?

The upper end of a light rope of length L = 0.600 m is attached to the ceiling, and a small steel ball with mass m = 0.200 kg is suspended from the lower end of the rope. Initially the ball is at rest and the rope is vertical. Then a force F with constant magnitude F = 0.760 N and a direction that is maintained tangential to the path of the ball is applied and the ball moves in an arc of a circle of radius L. What is the speed of the ball when the rope makes an angle a = 37.0° with the vertical?