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17 February, 22:00

A car moves at a speed of 50 kilometers/hour. Its kinetic energy is 400 joules. If the same car moves at a speed of 100 kilometers/hour, then its kinetic energy will be 800 1,600 3,200 4,500 joules.

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  1. 17 February, 22:10
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    800 joules because it's twice the amount
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