1.
A car of mass 1000 kg is moving at a speed of 20 m/s. What is its kinetic energy?
A
200 kJ
B
400 kJ
C
100 kJ
D
300 kJ
View Answer
Correct Answer: A — 200 kJ
Explanation:
Kinetic energy = 1/2 mv² = 1/2 × 1000 × 20² = 200000 J = 200 kJ.
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