hr A train running a speed of 54 km/hr passes gth of train a man standing on the platform in 9 sec. Length of the train in metre is 1) 140 m2) 135 m 3) 145 m 4) 120 m
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Answer:
54km = 54×5/18 = 15m /s
t = 9s
d= v × t
= 15×9 = 135m
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