The co-efficient of static friction is equal to_____ where `theta` is angle of friction.

Define angle of friction.

What is static friction ?

Co-efficient of kinetic friction depends on the_____of the body.

A body weighing 10 kg rests on a horizontal surface, the co-efficient of static friction between the surfaces being 0.364. Find the horizontal force needed just to pull the block

A 50 gm box is placed on an inclined plane making an angle of 30^@ with the horizontal so that a gentle tapping causes the sliding of the box. Calculate the coefficient of static friction for the surfaces of the box and the inclined plane in contact.

A block of mass 2 kg is placed on the floor The coefficient of static friction is 0.4. If a force of 2.8 N is applied on the block parallel to the floor, the force of friction between the block and the floor (take g =10ms^-2) is

A chain lies on a rough horizontal table. It starts skidding when one fourth of it’s length hangs over the edge of the table. The coefficient of static friction between the chain and the surface of the table is

If the coefficient of friction is √3 , the angle of friction:

A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. A force F of2.5 N is applied on the block as shown. Calculate the force of friction between the block and the floor

Determine the maximum acceleration of the train in which a box lying on the floor will remain stationary, given that the coefficient of static friction between the box and the trains floor is 0.15. Given g=10m//s^2 .