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An object weighs 22 kg in water and 30kg in air. what is the upthrust...

Physics
JAMB 2011
An object weighs 22 kg in water and 30kg in air. what is the upthrust exerted by the liquid on the object.


[g = 10 ms2]
  • A. 50 N
  • B. 520 N
  • C. 220 N
  • D. 80 N
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Correct Answer: Option D
Explanation
upthrust = weight in air - weight in liquid = 30 x 10 - 22 x 10 = 300 - 220 = 80 N

There is an explanation video available below.

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Explanation Video

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