Moment of concurrent forces about any point is constant.
If vector sum of all concurrent forces is zero, then moment of all the forces about any point is also zero.

The moment of a force about a given axis depends:

Write the expression for the moment of force about a given axis.

Assertion : Angular momentum of sun and planet system about any point remains constant Reason : Two equal and opposite forces will acts on them. Net torque of these two set of forces about any point is zero.

Assertion : Angular momentum of sun and planet system about any point remains constant Reason : Two equal and opposite forces will acts on them. Net torque of these two set of forces about any point is zero.

The moment of the force F acting at a point P, about the point C is

The moment of the force F acting at a point P, about the point C is

The moment of the force F acting at a point P, about the point C is

The vector sum of a system of non-collinear forces acting on a rigid body is gives to be non-zero. If the vector sum of all the torques due to the system of forces about a certain point is found to be zero, does this mean that it is necessarily zero about any arbitrary point?