Find the friction force impeding its motion

[kwehner]

Homework Statement

A 13.0 box is released on a 32 incline and accelerates down the incline at 0.10 .

a) Find the friction force impeding its motion.
b)What is the coefficient of kinetic friction?

Homework Equations

The Attempt at a Solution

 

[semc]

Hey man include the units for your numbers. You should draw the free body diagram and resolve the forces acting on the box into the x and y component so you can find the frictional force. Use uN to find the coefficient of kinetic friction.

 

[harvellt]

mmm force diagram and even a $$\mu$$ could help