If the weight of a man is 100N and he is sitting in an elevator. Which is moving down with an acceleration of 9.8 m/s², then the apparent weight of the mass will be
Correct answer: D. Zero
- A. 100 N
- B. 1960 N
- C. 200 N
- D. Zero
Explanation
The apparent weight of an object in an elevator is given by the formula W′=W−ma, where ′W′ is the apparent weight, W is the actual weight, m is the mass of the object, and a is the acceleration. In this case, the elevator is moving downward, so a is positive. Plugging in the values, W′=100N−((100/9.8)×9.8m/s2)=0 N.
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