Question

A train is travelling at a speed of 90 km/h. Brakes are applied as to produce a uniform acceleration of -0.5 ms^-2. Find how far the train will go before it is brought to rest.

Answer 1

We are given that

Initial speed (u) = 90 kmh^-1

= \(\frac{90\times 1000}{60\times 60}\) = 25ms^-1