Question
A metro train moves at a speed of 40 m/s and takes 20
seconds to pass a traffic signal. Calculate the time required for the train to completely pass through a 700-metre-long subway.Solution
ATQ,
Length of the train = 20 Ă— 40 = 800 metres
Time taken to cross the subway = (800 + 700)/40 = 1500/40 = 37.5 seconds
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