Question
When does a weighing machine will record zero for a passenger in a lift?
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Answer
If the cables of the lift are cut, the downward acceleration of the lift, $a_d = g.$ In this case, we get,
$N = mg – ma_d = 0$
Thus, there will not be any feeling of weight and the weighing machine will record zero.
$N = mg – ma_d = 0$
Thus, there will not be any feeling of weight and the weighing machine will record zero.
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