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20 February, 13:39

A car starts from rest and after 7 seconds it is moving at 42 m/s. What is the car's average acceleration? A. 0.17 m/s2 B. 1.67 m/s2 C. 6 m/s2 D. 7 m/s2 E. none of the above

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  1. 20 February, 15:37
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    Acceleration = velocity / time

    =42/7

    =6
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