Question

a train of length 100 m is crossing a bridge 200 m in length at speed of 72km per hour . the time taken by the train to cross the bridge is

Answer 1

$\large{explanation}$

lenth of the train=100m

lenth of the bridge=200m

the total distance traveled by the train on crossing the bridge is 200m

speed of the train=72kmperhour

$= \frac{72 \times 1000m}{3600second}$

$= 20mpersecond$

then the time taken by the train to cross the brdge is..

$s = \frac{d}{t}$

$20mpersecnd = \frac{200m}{t}$

$t = 10second$

the time taken by the train to cross 200m long brdge is 10second

$\large{vergilmustdie}$