A train travelling at 60km/hr passes through a tunnel 850m long.Find how long a passenger travelling by the train remains inside the tunnel

Answers (1)

Speed of the train=60km/hr=[60	imesfrac518]m/sec=frac503m/sec
The passenger remains inside the tunnel till the train covers the distance equal to the length of the tunnel i.e.,850m
	herefore The time for which the passenger remains inside the tunnel
=frac850mfrac503m/sec=[850	imesfrac350]sec=51sec

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