Question 191

A train 180 metres long is running at a speed of 90 km/h. How long will it take to pass a post ?

Solution

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

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