train 100 M long moving with the velocity 72 km per hour find the time it taken to cross the bridge 1 km long
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velocity = 72km/h
=72×2/18 m/s
=8m/s
distance = 1000m+100m
=1100m
time =1100m / 8m/s
=137.5 s
=72×2/18 m/s
=8m/s
distance = 1000m+100m
=1100m
time =1100m / 8m/s
=137.5 s
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