Question

If the force of gravity (weight) on a scuba diver is 600 N, what should the buoyant force be if the diver wants to descend? Rise to the surface?

Answer 1

force of gravity=600N

buoyant force is also 600N

because,,

force and buoyant force is the same thing this a difference only that it buoyant force is always acts in the water but it is exerting from the crust and gravity is also acts from the crust.

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Answer 2

A buoyancy of equal performance means-Neutral Buoyancy were one can dive or raise with little applied force from the driver.It would be gravity of 600N to buoyancy of 600N applied to counter gravity.