A stuntman swings from the end of a 4-m-long rope along the arc of a vertical circle.

A stuntman swings from the end of a 4-m-long rope along the arc of a vertical circle. If his mass is 70kg, find the tension in the rope required to make him follow his circular path, assuming he starts from rest when the rope is horizontal: a) At the beginning of his motionb) At the bottom of his arc