Question

Hi guys could i please get help on mechanical tehnology in the chapter on frictions......what is the meaning of the angle of friction?

Answer 1

Angle of friction is the maximum angle between normal component and reaction force.

tan φ = T/N where \(\vec R=\vec N +\vec T\)


In static friction T/N < tan φ = μstatic

It happens to be the the maximum angle you can lift an inclined plane before an object starts slipping.