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gabbagabbahey

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But how can I form an equation of motion from this?

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gabbagabbahey

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There are two forces acting on the cylinder at any given time:It is equal to the weight of the water displaced I believe.

(1) The downward force of gravity

(2) The buoyancy force (pressure) exerted by the water

Find a mathematical expression for the net force on the cylinder when it is displaced from equilibrium by a distance [itex]y[/itex]

Newton's 2nd Law maybe?But how can I form an equation of motion from this?

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