A particle of mass `1kg` and carrying `0.01C` is at rest on an inclined plane of angle `30^(@)` with horizontal when an electric field of `(490)/(sqrt(3))NC^(-1)` applied parallel to horizontal .The coefficient of friction is

A partical of mass 1kg and carrying 0.01C is at rest on an inclined plane of angle 30^(@) with horizontal when an electric field of (490)/(sqrt(3))NC^(-1) applied parallel to horizontal .The cofficient of friction is

A particles of mass 1kg and carrying positive charge 0.01C is sliding down an inclined plane of angle 30^(@) with the horizontal .An electric field E is applied to stop the particles.If the coefficient of friction between the particles and the surface of the plane is (1)/(2sqrt(3)) E must be

A brick of mass 2kg begins to slide down on a plane inclined at an angle of 45^(@) with the horizontal. The force of friction will be

A block is at rest on an inclined plane making an angle alpha with the horizontal. As the angle of the incline is increased the block start slipping when the angle of inclination becomes theta then coefficient of friction is equal to

A block of mass 2kg is pushed down an inclined plane of angle 37^(@) above horizontal with a force parallel to inclined plane. The coefficient of friction is (3)/(4). The block moves 10 m in 2 seconds starting form rest. The magnitude of the force is

A solid cylinder of mass 8 kg and radius 50 cm is rolling down a plane inclined at an angle of 30^@ with the horizontal. force of friction on the cylinder is?