A car moving at is brought to rest by a uniform retardation of

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A car moving at 20 m s−120\,\text{m\,s}^{-1} is brought to rest by a uniform retardation of 2 m s−22\,\text{m\,s}^{-2}. What is the minimum distance required for the car to stop? (a) 200 m200\,\text{m} (b) 400 m400\,\text{m} (c) 100 m100\,\text{m} (d) 50 m50\,\text{m}

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