Question

why is a force needed to keep a piece of corn inside the water?​

Answer 1

Answer:

As the density of the cork less than that of water. Magnitude of the buoyance force acting on the body inside the water is greater than the weight of the body. Hence, a force needed to keep a block of cork inside water to over come the net upward force acting on the cork.

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Answer 2

Bouyant force is needed to keep a piece of corn inside the water.

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