Question

A train 50 m long passes over a bridge at a velocity of 30 km/h. If it takes 36 s to cross the bridge, then the length of the bridge will be

Answer 1

Answer: 250m

Explanation:Let the length of bridge be X m

Length of train = 50m

Distance covered by train = (50+X) m

Speed = 30km/h => 30×5/18 => 25/3 m/s

Time taken = 36 s

we know that ,

Speed = distance/time

Distance = Speed × time

50+X = 25/3 × 36

X = 300 - 50 => 250 m