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## Homework Statement

A 400N trunk is on a 20 degree inclined plane and has a coefficient of kinetic friction of 0.56. What force must be exerted on the trunk to make it slide down the plane at a constant velocity?

## Homework Equations

## The Attempt at a Solution

I have drawn a free body diagram of the situation but am not able to derive an equation to calculate the force needed. Given an angle, I assume I will be using a trigonometric function.