What is angle of friction?

A force of 3kg wt is sufficient to pull a block of 4kgwt over a flat surface. What is the angle of friction ?

Answer the question briefly and the point: What is the angle of friction between two surfaces in contact having coefficient of friction (1)/(sqrt3) ?

Define angle of repose. Is this angle equal to the angle of friction ?

Minimum force is needed to move a block on rought surface, if theta = angle of friction. Angle of friction and angle of repose are numerically same.

In the figure shoen calculate the angle of friction . The block dows not slide. Take g=10(m)/(s^2) .

In the figure shoen calculate the angle of friction . The block dows not slide. Take g=10(m)/(s^2) .

Consider the following statements A) Angle of repose is equal to angle of friction B) Angle of friction is independent of coefficient of friction

The coefficient of friction between two surface is 0.2. The maximum angle of friction is

Assertion: A body slides down an inclined plane if the angle of friction is more than the angle of the inclined plane with the horizontal. Reason : When the angle of inclination is equal to the angle of friction, the component of weight parallel to the plane is just sufficient to overcome the frictional force.

Calculate angle of friction between wedge and block system is at rest M coefficient of friction between wedge and block.