What is the momentum of a 3 kg trolley moving at 4 m/s?
Answer and explanation
Correct answer: A. 12 kg m/s
- Step 1: p = mv. Step 2. 3 × 4 = 12. Answer: 12 kg m/s. Why not the others: 7 adds, 0.75 divides and 48 squares the speed.
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