Question

When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then the retardation will be:
(1) Option 1
(2) +2m/s2
(3) -2m/s2
(4) − 0.5 m/s2
(5) +0.5 m/s2
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Answer 1

Explanation:

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