A boulder is thrown into a deep lake. As it sinks deeper and deeper into water, does the buoyant force changes?
A boulder is thrown into a deep lake. As it sinks deeper and deeper into water, does the buoyant force changes?
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The buoyant force does not change as the boulder sinks because the boulder displaces the same volume of water at any depth and because water is practically incompressible, its density is practically the same at all depth and hence the weight of water displaced or the buoyant force is same at all depths.
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