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