Question

A trolley is moving horizontally with a speed of v m/sec w.r.t. ground. A man starts running from one end of a trolley with a speed of 2.5 m/sec w.r.t the trolley. After reaching the opposite end, the man turns back and continues running with a speed of 1.5 m/sec w.r.t. trolley in the backward direction. If the length of the trolley is L then find the maximum value of displacement of the man with respect to ground attained during whole motion.