A train is moving on a straight track at

PHYSICS · Multi-part · CBSE · Physics · Motion · Motion

Problem

A train is moving on a straight track at

72\,\text{km\,h}^{-1}

. The driver sees an obstacle

400\,\text{m}

ahead and applies the brakes so that the retardation is uniform. (i) Minimum retardation (ii) Time to stop

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