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If lift is going up with acceleration, the apparent weight of a body is

  • A.May be more or less than true weight
  • B.More than the true weight
  • C.Less than the true weight
  • D.Equal to the true weight

Answer: B

The apparent weight is more than the true weight.

For a lift accelerating upwards with acceleration \(a\), the floor must both support the body and accelerate it: \[N - mg = ma \Rightarrow N = m(g+a)\] The reading is that normal force, so it exceeds \(mg\). Going down with acceleration \(a\) it would read \(m(g-a)\).

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