Find Force to Submerge Ball: 900 kg/m^3, 0.03 m^3

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To determine the force required to keep a ball with a density of 900 kg/m^3 and a volume of 0.03 m^3 submerged in water, one must analyze the forces acting on the ball underwater. The buoyant force, which acts upward, needs to be countered by a downward force to maintain equilibrium. The net force should equal zero for the ball to remain at rest underwater. A force diagram can help visualize these forces and clarify the calculations needed. Understanding these principles is essential for solving the problem effectively.
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Homework Statement



A ball has a density of 900kg/m^3 and it's volume is 0.03m^3. To submerge in water the ball must be held down by the force. What is the force required to keep the ball submerged.

Homework Equations


Fnet=ma


The Attempt at a Solution


Not sure what equation to use to find the force/ how to do the problem
 
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Consider the following:
- What are the forces acting on the ball when it is underwater? (Draw a force diagram as aid)
- What should the net force be to keep it at rest underwater?
 

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