zay706080 zay706080

13-11-2020
Physics

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What is the velocity of a rock that is 0.02 kg and has 36 J of
KE?
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wisematt1234 wisematt1234

20-11-2020

Answer: 60 m/s

Explanation:

KE = 1/2mv^2

v = √ (2KE / m)

v = √ (2 x 36 J)/(0.02 kg)

v = √ 72 J/0.02 kg

v = √ 3600 m/s

v = 60 m/s

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