What is the kinetic energy of a 2 kg object moving at 3 m/s?
- A. 9 Joules ✓
- B. 6 Joules
- C. 18 Joules
- D. 12 Joules
Correct answer
A. 9 Joules
Explanation
Kinetic energy = (1/2)mv² = (1/2)(2)(3²) = (1/2)(2)(9) = 9 Joules.
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