Exam-style question
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A truck has a momentum of 5000 kg m/s and is moving at a speed of 10 m/s. What is the mass of the truck?.
- A.500 kg
- B.600 kg
- C.700 kg
- D.800 kg
Model answer
What a good answer should say
- 500 kg.
- the correct option
Explanation
Why this works
The correct answer is 500 kg. This supports Calculate momentum and impulse.
in Momentum because it uses the required mechanics relationship directly. The other options are less suitable because they confuse a different force, motion, energy, momentum, or materials concept.
Common mistake
No common mistake is linked to this question yet.