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**1. Homework Statement**

A 25kg chair initially at rest on a horizontal floor requires a 165N horizontal force to set it in motion. Once the chair is in motion, a 127N horizontal force keeps it moving at a constant velocity.

a.) Find the coefficient of static friction between the chair and the floor.

b.) Fing the coefficient of kinetic friction between the chair and the floor.

**2. Homework Equations**

**3. The Attempt at a Solution**

I'm not really sure what equation to use the solve the problem. I know that it is probably something really easy as sticking the numbers into a formula, but I don't know the formula, and we don't use a book, so I can't look it up.

I'm not really sure what equation to use the solve the problem. I know that it is probably something really easy as sticking the numbers into a formula, but I don't know the formula, and we don't use a book, so I can't look it up.