A stuntman swings from the end of a 4.10 m long rope along the arc of a vertical circle. If his mass is 72.

A stuntman swings from the end of a 4.10 m long rope along the arc of a vertical circle. If his mass is 72.5 kg, 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 motion b. At the bottom of his arc.