Question

A train 100m long is moving with a constant velocity of 60km per hour. Find the time it takes to cross the bridge

Answer 1

Dude..
What is the length of the bridge

Answer 2

Let the length of bridge be L. Total distance required for the train to cross the bridge is,

d = (L + 100) m

The speed of the train is,

v = 60 km/h = 60 × 5 / 18 = (50/3) m/s

Hence the time taken to cross the bridge is,

t = [(L + 100) / (50 / 3)] s.