![An object weighs 22kg in water and 30kg in air. What is the Upthrust exerted by the liquid on the object? [g = 10 ms−²]](https://erudites.ng/wp-content/plugins/accelerated-mobile-pages/images/SD-default-image.png)
![An object weighs 22kg in water and 30kg in air. What is the Upthrust exerted by the liquid on the object? [g = 10 ms−²]](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
A. 50 N
B. 520 N
C. 220 N
D. 80 N
Correct Answer:
Option D – 80 N
Explanation
Upthrust = weight in air – weight in liquid = 30 x 10 – 22 x 10 = 300 – 220 = 80 N
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