ksmetzer2487 ksmetzer2487

01-10-2020
Physics

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Which has more kinetic energy, a 40 kg cheetah running at 25 m/s or a 4,000 kg elephant moving at 2 m/s? How much more energy does it have?

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MuhammadJunaidRathor MuhammadJunaidRathor

01-10-2020

Answer:

1st case; mass=40 kg

v=25m/s

K.E.=1/2[40][25]^2=12,500 J

2nd case; mass=4,000 kg

v=2 m/s

K.E.=1/2[4000][2]^2=8000J

in case 1 Kinetic energy is greater.

Explanation:

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