A 1000-kg car whose speed is 80 km/h (22.2 m/s) has a kinetic energy of
A)25.2 kJ.
B)247 kJ.
C)2.42 MJ.
D)3.2 MJ.

Name: A 1000-kg car whose speed is 80 km/h (22.2 m/s) has a kinetic energy of A)25.2 kJ. B)247 kJ. C)2.42 MJ. D)3.2 MJ.
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Question

Quizplus · Accepted Answer

The kinetic energy (KE) of an object is given by the formula KE = 0.5 * mass * velocity^2. For the car, KE = 0.5 * 1000 kg * (22.2 m/s)^2 = 247,000 J or 247 kJ.

A 1000-Kg Car Whose Speed Is 80 Km/h (22