When a body is lying on a rough inclined plane and does not move, the force of friction

A body is sliding down a rough inclined plane. The coefficient of friction between the body and the plane is 0.5. The ratio of the net force required for the body to slide down and the normal reaction on the body is 1:2. Then, the angle of the inclined plane is

A body is sliding down a rough inclined plane The coefficient of friction between the body and the plane is 0.5 .The ratio of the net force required for the body to slide down and the normal reaction on the body is 1:2 Then the angle of the inclined plane is

A body is sliding down a rough inclined plane of angle of inclination theta for which the coefficient of friction varies with distance x as mu (x) = kx, where k is a constant. Here x is the distance moved by the body down the plane. The net force on the body will be zero at a distance x_(0) given by :

A wooden box is lying on an inclined plane. What is the coefficient of friction if the box starts sliding when the angle of inclination is 45^@

A body slides down a rough inclined plane and then over a rough plane surface. It starts at A and stops at D. The coefficient of friction is :