I Static friction vs. Normal force on an incline

I have two surfaces that have a coifficent of friction of .6. Disregarding mass (if possible) at what angle would the force of static friction and the normal force be equal

 

This problem relates to woods chips sliding down a steel slide they range in mass from one gram to 500 grams what would the minimum angle be so that the normal force applied to every chip would overcome the force of static friction on each individual chip

 

The acceration of gravity acting soon an incline

 

*upon

 

Mgsin°=n

 

Where m is mass
G is acceleration of gravity
° is the angle of the steel slide
N is normal force applied to object

 

No I am trying to determine the minimum angle the slide needs to be placed at so the chips accelerate down the slide. I.e. when the force from gravity is enough to overcome the static friction of the chips

 

That was the equation I found when reshuching frictional forces

 

Ff=un
Ff is frictional force
U is the coifficent of friction
N is normal force

 

None really outside college physics when I was a senior I have always had a love for science and physics though which is way I am attempting to educate myself on what I still need to learn and refresh what I already know

 

Vaguely

 

I believe that was what we ended up doing in physics class to determine at what angle a car's tires would loose friction between the road surface