Question

(a) A massless rigid rod of length L has a ball of mass m attached to one end (figure

above). The other end is pivoted in such a way that the ball will move in a vertical circle.

Assume that there is no friction at the pivot. The system is launched downward from the

horizontal position A with initial speed v0.The ball just barely reaches point

D and then stops. (i) Derive an expression for v0 in terms of L, m, and g. (ii) What is the

tension in the rod when the ball passes through B?

(b) Show that when two bodies of equal masses suffers elastic collision in one

dimension, their velocities get exchanged.​

Answer 1

Explanation:

(ii) 91 cm to 1.04 m

through B?

(b) Show that when two bodies of equal