What is the kinetic energy of a 2 kg object moving at 5 m/s?
- A. 50
- B. 25 ✓
- C. 27
- D. 20
Correct answer
B. 25
Explanation
Kinetic energy = (1/2)mv² = (1/2)(2)(5²) = (1/2)(2)(25) = 25 Joules.
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