A rope of mass m and length L holds a block of mass M, as shown in the figure. The distance between the fixed end and the pulley is l. The block oscillates frictionless up to a m ?aximum angle ?. Determine, for a pulse traveling through the horizontal chord, the travel time of the pulse when the pendulum passes through the lowest part and when it is at the maximum angle. Compare the results and indicate under which condition the pulse takes the shortest time.

N M