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19 November, 00:11

A car starts from rest and reaches 20 m/s in 5 seconds. The average acceleration of the car is?

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  1. 19 November, 01:25
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    Answer: 4 m/s

    Explanation: Acceleration is the rate at which somethings speed changes in a short period of time. The car's speed started at 0 and went to 20 m/s, which was a change of 20 m/s. It did this in 5 seconds. So the rate at which the speed changed was 20 m/s / 5 s = 4 m/s
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