Question

A train is running at a speed of 48 km/h . How long will it take to reach a signal at a distance of 80 m from the starting platform

Answer 1

Speed = 48km/h

speed ( in meters ) = 48 × 1000/3600

_______________

speed = 40/3 m/s

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distance = speed × time

80m = 40/3 m/s × t

80m × 3/40 s/m = t

6 = t

__________

t = 6 s

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ans) the train takes 6 seconds to reach the signal.

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