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You find your mass to be 42 kg on a weighing machine. Is your ... - Science
Question
You find your mass to be 42 kg on a weighing machine. Is your mass more or less than 42 kg?
Answer
Your mass is slightly more than 42 kg.
Reason:
When you stand on a weighing machine, the air exerts an upward buoyant force on your body. This makes the machine measure a weight slightly less than your actual weight. Therefore, to balance this effect, your actual mass must be slightly more than the reading shown.