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Buoyant Force

A body weighs...

Question

A body weighs 5 kg in air and 3 kg in water, calculate the upthrust experienced by the body.

A

3N

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B

4N

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C

5N

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D

2N

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Solution

The correct option is D
2N

The weight of a body is reduced because of the upthrust, so the change in weight will be equal to the upthrust.

Change in weight = 5 - 3 = 2 kg

so, upthrust = 2kg = 2 N.

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