What Forces are at Play on a Rock Sinking at Constant Speed in Water?

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A rock sinking at constant speed in water experiences three forces: gravity, water resistance, and buoyancy. Gravity pulls the rock downward, while water resistance acts upward against the motion. Buoyancy, which arises from the displacement of water, also contributes to the upward force. The discussion highlights confusion around the role of buoyancy in this scenario, with some participants seeking clarification on its function. Understanding buoyancy is essential for grasping the dynamics of objects submerged in fluids.
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If a rock is sinking in water with constant speed..

how many forces are working on it?
 
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johann1301 said:
If a rock is sinking in water with constant speed..

how many forces are working on it?

What are *your* thoughts? What is the context of your question?
 
my thoughts are that there are only two; gravity and water resistance, but my physics book says its three; gravity, water resistance AND buoyancy. i don't understand how buoyancy works in this situation... anyone?
 
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