A force of 98 N is just able to move a body weighing 45 kgf on rough horizontal surface. Calculate the coefficient of friction and the angle of friction.

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

A force of 3 kg weight is just sufficient to pull a block of 4 kg over a horizontal surface.What is the angle of friction?

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 ?

When a body slides down from rest along a smooth inclined plane making anangle of 45^@ with the horizontal, it takes time T. when the same body slides down from rest along a rough inclined plane making the same angle and through the same distance, it is seen to take time pT, where p is some number greater than 1. Calculate the co-efficient of friction between the body and the rough plane.

A disc spinning clockwise about its axis with angular velocity omega_0 is set on a rough horizontal plane[Fig.]. What si the direction of frictional force at point P and sense of frictional torque ,before pure rolling starts? .

A body of mass 2 kg initially at rest moves under the action of an applied horizontal force of 7 N on a table with coefficient of kinetic friction = 0.1. Compute the:- work done by friction in 10 s.

A body of mass 2 kg initially at rest moves under the action of an applied horizontal force of 7 N on a table with coefficient of kinetic friction = 0.1. Compute the:- work done by the net force on the body in 10 s.

A body of mass 2 kg initially at rest moves under the action of an applied horizontal force of 7 N on a table with coefficient of kinetic friction = 0.1. Compute the:- change in kinetic energy of the body in 10 s.

A body of mass 2 kg initially at rest moves under the action of an applied horizontal force of 7 N on a table with coefficient of kinetic friction = 0.1. Compute the:- work done by the applied force in 10 s.