A train 180 metres long is running at a speed of 90 km/h. How long will it take to pass a post ?
speed of train = 90 km/h = 90 * $$\frac{5}{18}$$ m/s
=> speed = 25 m/s
Time taken to pass the post = $$\frac{180}{25}$$ = 7.2 sec
Create a FREE account and get: