Aball whirls around in a vertical circle at the end of a string. the other end of the string is fixed at the center of the circle. assume that the total energy of the ball-earth system remains constant.
(a) what is the tension in the string at the bottom? (use the following as necessary: m for mass of the ball, g for gravitational acceleration, vb for velocity at the bottom, andr for radius of the circle.)
tb =
(b) what is the tension in the string at the top? (use the following as necessary: m, g, vt for velocity at the top, and r.)
tt =
(c) how much greater is the tension at the bottom? (use the following as necessary: m, g.)
tb = tt +