Practice Quiz

MCAS Physics Exam Practice

Category - Introductory Physics

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Mike, who has a mass of 75 kg, is running north at 2.6 m/s. He accidentally collides with Tom, who has a mass of 125 kg and is not moving.Which of the following statements describes how much momentum each person has before the collision?
  1. Mike has a momentum of 130 kg • m/s north, and Tom has no momentum.
  2. Mike has a momentum of 195 kg • m/s north, and Tom has no momentum.
  3. Both Mike and Tom have a momentum of 130 kg • m/s north.
  4. Both Mike and Tom have a momentum of 195 kg • m/s north.
Explanation
Answer: B - Mike has a momentum of 195 kg • m/s north, and Tom has no momentum.
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