Post-UTME Physics 2012 Objective — Question 1
Question 1 of 7 from the Post-UTME Screening (Post-UTME) Physics 2012 Objective paper, with the correct answer and a full explanation.
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A man stands on a spring scale placed in a lift. The lift descends at constant velocity as a result, the scale reads a weight
- A. greater than the weight of the man
- B. the same as the weight of the manCorrect
- C. of zero
- D. Less than the weight of the man
Explanation
At constant velocity (zero acceleration), the normal (scale) force equals the man's true weight.
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