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]

  • 50 N
  • 520 N
  • 220 N
  • 80 N checkmark

The correct answer is: 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 .

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