A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?

Given Data

• Train length = 110 m
• Train speed = 60 km/hr
• Man runs at 6 km/hr in opposite direction

Step 1: Relative speed (opposite)v_rel = 60 + 6 = 66 km/hr = 66 × (5/18) = 18.3333 m/s

Step 2: Time to cross the mant = distance ÷ speed = 110 ÷ 18.3333 = 6 s

Final AnswerThe train passes the man in 6 s.