A 100kg man is standing in an elevator, which accidentally falls freely. What will be the weight of the person in the freely falling elevator (take g=10 m/s^2)
Correct answer: D. Zero
- A. 1000 N
- B. 10 N
- C. 500 N
- D. Zero
Explanation
Being free fall, the man will be in a state of weightlessness As it is a numerical, it can have only one possible answer.
This question appeared on the UHS MDCAT 2014 paper, which you can sit online with every answer explained.
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About Weightlessness and Artificial Gravity
Weightlessness means the apparent weight or supporting force on an object is zero, as in free fall or an orbiting spacecraft, not that gravity has disappeared. Artificial gravity is produced by centripetal acceleration, usually through rotation. Questions compare gravitational force, normal reaction, orbital motion and the sensation of weight.
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