A 25 kg rock resting on the bottom of a lake must be moved from the paths of boats. The rock has a density of 2350 kg/m^3. What force is needed to lift the rock while under water?

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asked Oct 15, 2021 213k views

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A 25 kg rock resting on the bottom of a lake must be moved from the paths of boats. The rock has a density of 2350 kg/m^3. What force is needed to lift the rock while under water?

Physics
college

Pierpy asked

by Pierpy

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Answer:

The force needed is the weight of the rock minus the buoyant force.

Step-by-step explanation:

Ivys answered Oct 19, 2021

by Ivys

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