Question

200 metre long train crosses A 400 long Bridge with a speed of 36 km per hour calculate the time taken by the train to cross the bridge Also explains the process...

Answer 1

the time taken will be 1 minute.

 as first the engine of train enters and then the whole train passes and finally the last point in the train crosses the bridge. 

So, total distance covered by the train = Length of bridge + it's own length

=> (200+400)m

=> 600 m. 

Speed = 36 kmph = 10m/s 

Hence, time taken = 600/10 s = 60s = 1min

Answer 2

Time taken = distance/speed

So total distance =length of train +length of bridge

=200+400

=600m

0.6km


Time = 0.6/36

Time = 0.016 hours