What is the kinetic energy of a 2 kg object moving at 15 m/s?
Answer and explanation
Correct answer: B. 225 J
- Step 1: KE = 1/2 m v squared.
- Step 2: = 1/2 x 2 x 15 squared = 225 J.
Answer
225 J.
Why not the others: 450 J, 15 J and 30 J do not fit.
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