Question

7.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:

When a car driver travelling at a speed of 10m/s applies brakes and brings the car to rest in 20 s,then retardation will be: - 4846971. ... 0 = 10 + a20 a = -1/2 m/s² [hereative sign shows retardation ]. diavinad8 and 575 more ... -0.5 m/s². Explanation: given,. v = 0 m/s (since the car comes to rest). u = 10 m/s.

Explanation:

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