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 ms
2]
-
A.
50 N
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B.
520 N
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C.
220 N
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D.
80 N
Correct Answer: Option D
Explanation
upthrust = weight in air - weight in liquid = 30 x 10 - 22 x 10 = 300 - 220 = 80 N
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