Question

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

Answer 1

Answer:

Length of the bridge will be = 250 m

Step-by-step 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

Length of the bridge will be = 250 m