A spherical ball of mass m =5kg rests between two planes which make angles of `30^(@)` and `45^(@)` respectively with the horizontal. The system is in equilibrium. Find the normal forces exerted on the ball by each of the planes. The planes are smooth.

A sphercial ball of mass 5kg is resting on a plane with angle of inclination 30^(@) with respect to the horizontal as shown in the figure. The ball is held in place by a rope attached horizontally to the top of the ball and to the slope. The frictional force acting on the ball is

A sphercial ball of mass 5kg is resting on a plane with angle of inclination 30^(@) with respect to the horizontal as shown in the figure. The ball is held in place by a rope attached horizontally to the top of the ball and to the slope. The frictional force acting on the ball is

A block of mass m slides down an inclined plane which makes an angle theta with the horizontal. The coefficient of friction between the block and the plane is mu . The force exerted by the block on the plane is

A block of mass m slides down an inclined plane which makes an angle theta with the horizontal. The coefficient of friction between the block and the plane is mu . The force exerted by the block on the plane is

A body of mass 2 kg rests on a rough inclined plane making an angle of 30^(@) with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is :

A block of mass 3 kg rests on a rough inclined plane making an angle of 30^(@) . With the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

A spherical ball is placed between a vertical wall and a movable inclined plane as shown. There is no friction between the wall and the ball, and no friction between the ball and the inclined plane. The coefficient of friction between the inclined plane and the ground is The system is in equilibrium. The normal force exerted by the plane on the ball is

A spherical ball of mass 1/2 kg is held at the top of an inclined rough plane making angle 30º with the horizontal the coefficient of limiting friction is 0.5. If the ball just slides down the plane without rolling its acceleration down the plane is -