Question

You find your mass to be $42kg$ on a weighing machine. Is your mass more or less than $42kg$?

Answer 1

Weighing Machine:

1. Our perceived weight, which is less than our genuine weight, is measured by the weighing machine. A weighing machine is calibrated to show mass and measures the weight of a body.
2. When we stand on a weighing machine, our weight acts downwards, while air acts upwards owing to upthrust. As a result, our apparent weight falls below our actual weight.
3. Our genuine weight is higher, i.e. greater than $42$ kilograms, because the weighing machine measures the apparent weight.

Hence, the weight will be more than $42$ kilograms.