A train 150 m long running at 60 km/h crosses a man walking at 6 km/h in opposite direction. Time taken is MCQ with Answer and Explanation

A train 150 m long running at 60 km/h crosses a man walking at 6 km/h in opposite direction. Time taken is
A. 9 s
B. 12 s
C. 15 s
D. 6 s
Answer: Option A
Solution (By JKExamLibrary)
Relative speed = 60+6 = 66 km/h = 66×5/18 = 55/3 m/s. Time = distance / relative speed = 150 / (55/3) = 450/55 = 8.18 s ≈ 9 s. Actually 450/55=8.18, nearest 9 s. Option B.

This question belongs to: Science Physics

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