Simsq9397 Simsq9397

11-10-2017
Physics

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18. What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s? A. 6,000 J B. 5,880 J C. 2,940 J D. 12,000 J

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Ellen67 Ellen67

11-10-2017

Kinetic energy is defined
KE = 1/2 * m * v^2

Let's put in the numbers
KE = 1/2 * 30 * 20^2 = 6000

Therefore, the answer is a) 6000 J

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