Question

A train of mass 6.84 * 10^6 kg is moving at speed of 80 km/h. The brakes, which produce a new backward force of 1.93*10^6 N are applied for 25 seconds
(I) What is the new speed of the train ?
(ii)how far has the train travelled in this time?

Answer 1

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Answer 2

Explanation:

Refer to the attachment..