The bob A of a pendulum released from a height h hits head-on another bob B of the same mass of an identical pendulum initially at rest. What is the result of this collision? Assume the collisio to be elastic (see figure).

Options

A. Bob A comers to rest at B and bob B moves to the left attaining a maximum height h
B. Bobs A and B both move to the left, each attaining a maximum height `(h)/(2)`
C. Bob B moves to the left and bob A moves to the right, each attaining a maximum height `(h)/(2)`
D. Both bob come to rest.