When a car driver traveling at a speed of 10m/s, applies brakes and brings the car to rest in 20s, then the retardation will be :
(1) +2m/s²
(2) -2m/s²
(3) +0.5 m/s²
(4) -0.5m/s²
Answers
Answered by
5
Answer:
Answer:(d)
Explanation:D is because
v=o U=10m/s T=20s
A= v-u/t
A= 0-20/10
A= -0.5
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Answered by
4
Explanation:
-0.5m/s²
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