Question

a train 100 metre long is to cross a river bridge of length 800m. what time will it take to cross the bridge given that train moves with a constant velocity of 36km/h





plz... say me.....

Answer 1

Answer:

first find total distance

then find speed in m/s

then apply the formula of speed =distance/time

therefore here's your answer 90sec

Answer 2

Answer:

90 sec

Explanation:

Total distance the train need to travel=Length of the train+Length of the river bridge= 900m.

Speed=36km/hr = 10m/sec.

Therefore time= Distance/Speed = 900/10 =90 sec.