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14 March, 03:39

A race car starting from rest accelerates uniformly at a rare of 4.90 meters per second^2. What is the cars speed after it has traveled 200 meters?

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  1. 14 March, 07:02
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    From the law of Galileo Galilei : v²=v₀²+2ad we take the speed

    v²=0+2*4.90*200=1960=>v=√1960=44.27 m/s
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