Question

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

Answer 1

velocity = 90×5/18 = 25 m/s
${v}^{2} = {u}^{2} = 2as \\ 0 = 625 + 2 \times - 0.5 \times s \\ - 625 = - 1.0s \\ s = 625 \: metres$
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Answer 2

I hope this will help u....