Question

a train of length 50m is moving with a constant speed of 10m/s.calculate the time taken by the train to cross an electric pole and A BRIDGE of length 250 m

Answer 1

Answer:

Time to cross electric pole= 5 second

Time to cross bridge= 30 second

Explanation:

Speed of train =10m/s

Time to cross electric pole

= length of train/ speed

= 50/10 = 5 sec

Speed of train =10m/s

Time to cross the bridge

= length of (train + bridge) / speed

= (50+250)/10 = 300/10

= 30 second