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29 August, 14:32

6. A person who weighs 600 N is standing on a scale in an elevator. The elevator is

identical in both cases. In both cases the elevator is moving downward, but in Case A it

is accelerating upward and in Case B it is accelerating downward. Will the scale reading

be (a) greater in case A, (b) greater in case B, or (c) the same in both cases? Explain.

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Answers (1)
  1. 29 August, 14:55
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    Option A, greater in case A

    Explanation:

    Case A

    N-W=ma

    N=W+ma

    Where a is acceleration, m is mass, W is weight

    Case B

    W-n=ma

    N=W-ma

    Therefore, the reading is greater in case A
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