it is easier to lift a heavy stone in water than in air is this true ? If so , why ?
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Answer:
It is because in water, the stone experiences an upward buoyant force that balances the true weight of the stone which is acting in the opposite direction (weight acts downwards).
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Explanation:
It is easier to lift a heavy stone under water than in air because in water, it experiences an upward buoyant force which balances the actual weight of the stone acting downwards. Thus, due to upthrust there is an apparent loss in the weight of the heavy stone, which makes it lighter in water, and hence easy to lift.
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