Show that `tan theta=mu`, where `theta` is angle of friction and `mu` is coefficient of friction.

Define coefficient of friction.

Define angle of friction.

If angle of friction is 30^@ ,calculate the coefficient of friction.

Coefficient of friction depends on

Are the dimensions of coefficient of viscosity and coefficient of friction same?

The angle of friction betwen two surfaces is 30^@ ,what is coefficient of friction?

In the figure, a body A of mass m slides on plane inclined at angle theta_1 to the horizontal and mu_1 is the coefficient of friction between A and the plane. A is connected by a light string passing over a fictionless pulley to another body B, also of mass m, sliding on a frictionless plane inclined at angle theta_2 to the horizontal which of the following statements are true ?