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## Homework Statement

A 50 kg is pushed across a floor by a constant horizontal force of 200 N. What is the force of friction?

## Homework Equations

Ffr = coeff*Fn

## The Attempt at a Solution

I'm not sure how to find it as I don't know the coefficient.

The answer says the answer is 200 N, but I don't know why it's equal to the applied force. The problem didn't say it was being moved at a constant velocity, it only has a constant applied force.