Question

When a car driver travelling at a speed of 10 m/s applies brakes andbrings the car to rest in 20 s, then the retardation will be _______. *​

Answer 1

Answer:

Retardation = 2 m s^-2

Explanation:

Acceleration = (Final velocity - Initial Velocity)/Time

                     = (0 - 20)/10 = -2 m s^-2

Retardation is nothing but the magnitude of deceleration, or you can also say the negative of acceleration obtained. So, in this case retardation is 2 m s^-2.

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Answer 2

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