A small body A starts sliding down from the top of a wedge (figure) whose base is equal to `l=2.10m`. The coefficient of friction between the body and the wedge surface is `k=0.140`. At what value of the angle `alpha` will the time of sliding be the least? What will it be equal to?

A small body A starts sliding down from the top of a wedge (see fig) whose base is equal to l. The coefficient of friction between the body and wedge surface is mu= 1.0 . At what value of angle q will the time of sliding be least?

A body of mass m slides down an inclined plane making an angle of 45^(@) with the horizontal. If the coefficient of friction between the body and the plane be 0.3, the acceleration of the body is approximately equal to :

A block is at rest on an inclined plane making an angle alpha with the horizontal . As the angle alpha of the incline is increased the block starts slipping when the angle of inclination becomes theta . The coefficient of static friction between the block and the surface of the inclined plane is or A body starts sliding down at an angle theta to the horizontal. Then the coefficient of friction is equal to

Coefficient of friction between block of mass m and fixed wedge is mu = 0.5 . For what value of (m)/(M) frictional force between block of mass m and wedge becomes zero ?

A small body of mass m slides down from the top of a hemisphere of radius r . The surface of block and hemisphere are frictionless. The height at which the body lose contact with the surface of the sphere is

A block of mass m rests on a rough inclined plane. The coefficient of friction between the surface and the block is µ. At what angle of inclination theta of the plane to the horizontal will the block just start to slide down the plane?

In figure, the pulley shown is smooth. The spring and the string are light. Block B slides down from the top along the fixed rough wedge of inclination theta . Assuming that the block reaches the end of the wedge, find the speed of the block at the end. Take the coefficient of friction between the block and the wedge to be mu and that the spring was relaxed when the block was released from the top of the wedge.