The time taken for an train of length 20 m with velocity 60 k/m time taken to cross the bridge
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time = d/v
first change speed 60km/h to m/sec
= 60×5/18
= 16.67 m/sec
time= 20/16.67
1.199 sec
first change speed 60km/h to m/sec
= 60×5/18
= 16.67 m/sec
time= 20/16.67
1.199 sec
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