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## Homework Statement

An older gentleman drags a wooden crate (m = 10 kg) containing his childhood toys out of storage. The 120 N force F that he applies on the crate makes an angle of 30° with the horizontal. The coefficient of kinetic friction μk between the well-polished floor and wooden crate is experimentally determined to be 0.1. What is the frictional force f on the crate? (cos 30° = .866, sin 30° = .5)

## Homework Equations

F=ma

mgsin(θ)

f = μN

W=mg

## The Attempt at a Solution

I have the solution in front of me, however, it's killing me that I can't solve it.

Any assistance would be fantastic.