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14-01-2020
Biology

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What is the kinetic energy of a 2,000-kg car moving at 20 m/s?
O A. 4,000 J
O B. 40,000 J
O C. 400,000 J
O D. 20,000 J

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14-01-2020

Answer:

K.E = 1/2 mv^2

KE = 1/2 ×2000×20^2 = 1000×400 =400000

option c correct

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