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A chair that weighs 16.8 N rests on the floor. What force does the floor exert...

A chair that weighs 16.8 N rests on the floor. What force does the floor exert on the chair? Please round your answer to one decimal place.

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Answer #1

Let W be the weight of the chair and N is the normal force applied by the floor on the chair.

Since the chair is at rest, the net force acting on the chair must be zero.

W + N = 0

We get N = -W = -16.8 newton

The negative sign indicate that the force applied by the floor is acting in opposite direction to the weight.

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