An object under water has mass 100 kg. What is the buoyand force?

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SUMMARY

The buoyant force acting on an object submerged in water with a mass of 100 kg is calculated using the formula w = mg, where g is the acceleration due to gravity (9.8 m/s²). This results in a buoyant force of 980 Newtons. The discussion highlights a potential error in the problem statement, suggesting that the mass might have been intended to be 1000 kg instead of 100 kg, which would significantly alter the buoyant force calculation. The correct understanding of buoyant force is essential for accurate problem-solving in fluid mechanics.

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An object is completely under water, hovering, neither rising nor sinking. Its mass is
100 kg. What is the buoyant force on the object, in Newtons?
(a) 12,460
(b) 17,860
(c) 16,080
(d) 9800
(e) none of these

Since buoyant force is equal to the weight of the object, I figured I could plug it into the equation w=mg
w=100 x 9.8
which would give me 980...
Am I doing something wrong?
 
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Nothing wrong with your work. I suspect a typo in the problem statement. Maybe they meant 1000 kg, not 100.
 
okay, thank you! :)
 

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