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: (a) + 2 m/s2 (b) − 2 m/s2 (c) − 0.5 m/s2 (d) + 0.5 m/s2

Answer 1

Answer:

OPTION :-[c].

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Answer 2

Answer:

(c) -0.5 m/s2

Explanation:

r= 0-10/20 = -0.5