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03-03-2021
Chemistry

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A fire women dropped a person onto the safety net.Right before the person hit the net he had a velocity of 11.2m/s and 1800 J of kinetic energy. What was the mass of the person?

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03-03-2021

Explanation:

kinetic energy = ½mv²

1800 = ½ × m × 11.2²

1800 = ½ × m × 125.44

3600 = 125.44m

m = 3600/125.44

m = 28.7 Kg

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