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A car has an initial speed of 10 M's The brakes are applied and the speed of the car is reduced to 5 M S in 2s Calculate the average value of retardation during the braking process?
Wiki User
∙ 14y ago
The "retardation" is more correctly referred to as "acceleration".
Since the car is slowing down, the acceleration is negative.
Its average value is
(change in speed) divided by (time for the change) = (5 - 10)/2
= -2.5 m/sec2.
Wiki User
∙ 14y ago
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