Define coefficient of rolling friction.

State laws of limiting friction. Define coefficient of limiting friction and coefficient of kinetic friction. What are units and dimensions of coefficient of friction?

Define coefficient of limiting friction.

Define coefficient of kinetic friction.

State the laws of kinetic friction. Define coefficient of kinetic friction.

Define coefficient of Kinetic friction. Give the necessary formulae.

Explain Kinetic friction. Write laws of kinetic friction. Define coefficient of kinetic friction.

If mu_k is the coefficient of kinetic friction, mu_r the coefficient of rolling friction and mu_s the coefficient of static friction, then

Arrange coefficient of limitin friction (mu_1) ,coefficient of kinetic friction (mu_k) and coefficient of rolling ffriction (mu_r) in scending order.