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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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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?

User FotisK
by
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1 Answer

5 votes

Step-by-step 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

User Gareth Cornish
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6.3k points
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