A man of weight w is standing on a lift which is moving upward with an acceleration a. The apparent weight of the man is:
Correct answer: D. Option D
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
D is the correct option. As the body is moving upwards, 2 unbalanced forces are acting on the body, weight and the apparent weight (or the reaction force, R) causing the body to accelerate.
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Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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