A body is filled quasi statically to the top of a mountain through path 1 and path 2 by applying a force from bottom in the figure. Coefficient of friction between the body and surface is `mu` then

If angle of repose is phi , the coefficient of static friction between body and the plane is

If angle of repose is phi , the coefficient of static friction between body and the plane is

A body of mass m starts from rest down a plane of length l at an angle theta with the horizontal. (a) find the body's speed at the bottom (b) How far will it slide horizontally on a similar surface after reaching the bottom of the incline. The coefficient of friction between the body and the plane is mu .

A body with zero initial velocity slips from the top of an inclined plane forming an angle alpha with the horizontal. The coefficient of friction mu between the body and the plane increases with the distance s from the top according to the law mu = bs . After what distance the body will stop.

A body of mass m kept on the floor of a lift moving downwards is pulled horizontally. If mu is the coefficient of friction between the surface in contact, then

A block of mass m is supported on a rough wall by applying a force in figure Coefficient of static friction between block and wall is mu For what range of value of p , the block remain in static equilibrium ?

A block of mass m is supported on a rough wall by applying a force in figure Coefficient of static friction between block and wall is mu For what range of value of p , the block remain in static equilibrium ?

A horizontal force is applied on a body on a rough horizontal surface produces an acceleration a .If coefficient of friction between the body and surface which is a is reduced to mu//3 ,the acceleration increses by 2 units .The value of mu is