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

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The weighing scale shows the reading according to the weight applied to it. The weight on the weighing scale would be slightly less than our weight because there is a small upward force acting on us due to the buoyancy of the atmosphere and the reading would be slightly lower than our actual weight, therefore, our mass must be more than 42 kg.

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