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A person pushes a desk across the horizontal floor with a constant force of $20.0\ N$. The desk moves at a constant $2.0 m/s$.

If the only other horizontal force acting on the desk is the force of friction, how does the amount of frictional force compare to the amount of force the person applies?

A

The force of friction must be greater than the force the person applies.

B

The force of friction must be less than the force the person applies.

C

The force of friction must be the same as the force the person applies.

D

The force of friction must be zero.

E

Not enough information is given to answer this question

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