Which of the following are coplanar concurrent forces?

They are the forces which meet at one point with lines of action lying on separate planes.

They are the forces which meet at one point with lines of action lying on same plane.

They are the forces which meet at different points with their lines of action lying on the same plane.

None of these

Kinetic friction

Static Friction

Internal friction

None of these

The friction between the two surfaces convertes kinetic energy into electrical energy.

The friction between the two surfaces convertes kinetic energy into magnetic energy.

The friction between the two surfaces convertes kinetic energy into thermal energy.

The friction between the two surfaces convertes magnetic energy into electrical energy.

Moment of force is the sum of force and distance from an axis.

Moment of force is the product of a force and its distance from an axis.

Moment of force is the first derivative of force with respect to its axis.

None of these

19 %

81 %

18 %

None of these