Question 2
Newton's Laws and MomentumA 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 man
- C.of zero
- D.less than the weight of the man
- E.greater than the weight of the man by 1 kg.
Show the answer and explanation
Answer: B (the same as the weight of the man)
Explanation
At constant velocity there is no acceleration, so the scale's push equals the man's weight.