A train is travelling at a speed of 90 km h-1. Brakes are applied so as to produce a uniform acceleration of – 0.5 m s-2. Find how far the train will go before it is brought to rest.
(We know, )
Given, Initial speed of the train, =
Acceleration of the train, (Negative sign implies retardation)
Since, the train has to be brought to rest, final speed of the train, =
Therefore, the train travels a distance of before coming to rest.