A man of weight \( w \) is standing on an elevator which is ascending with an acceleration \( a \). The apparent weight of the man is
Correct answer: C. \( mg + ma \)
- A. \( mg \)
- B. \( ma - mg \)
- C. \( mg + ma \)
- D. \( mg - ma \)
Explanation
The apparent weight of a person in an elevator is the sum of the gravitational force and the force due to the elevator's acceleration
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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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