Question
Two trains A and B, were proceeding in the same
direction on parallel tracks at 22 km/hr and 76 km/hr respectively. A man noticed that it took exactly 10 seconds for the faster train to pass by him. What is the length of the faster train?Solution
Relative speed = (76 β 22) km/hr = 54 km/hr => 54 Γ (5/18) = 15 m/sec Length of the faster train = 15 Γ 10 = 150 m


