Types of Friction

Find the value of pushing force $P$ just to move the block. If the coefficient of friction between block and floor is given as $\mu =0.6$ 

A book of weight $20 \mathrm{N}$ is pressed between two hands and each hand exerts a force of $40 \mathrm{N}$. If the book just starts to slide down. Coefficient of friction is $\mu$. Find the value of $4\mu$.

The kind of force that acts between moving surfaces is called _____.

Does friction depend on the surface area?

Name the factors on which the static friction force depends.​

Limiting friction is inversely proportional to the magnitude of normal reaction

Limiting friction is the maximum value of static friction.

What is the unit of coefficient of static friction?

The coefficient of friction is a dimensionless quantity.

The force of kinetic friction does not depend on

Kinetic friction is directly proportional to

What are the cause of rolling friction?

Angle of repose and angle of friction are equal.

The minimum angle that an inclined plane makes with the horizontal when a body placed on it just begins to slide down is called _____.

What is coefficient of kinetic friction.

What is coefficient of static friction ?

Static friction is self adjusting force

 Define static friction ?

What is Kinetic Friction?

How do you find the friction of a graph?