Question

Define moment of a force about an axis or point.​

Answer 1

Answer:

Turning effect of force applied to a rotational system at a distance from the axis of rotation. The moment is equal to the magnitude of the force multiplied by the perpendicular distance between its lines of action and the axis of rotation.

Answer 2

Moment of a force about an axis or point: It is defined as the effectiveness of a force regarding its tendency to produce rotation of a body about an axis or point.

• The moment of a force about an axis is measured by the product of the magnitude of force and arm of force.
• Its S.I unit is N/m.
• The moment of a force about an axis is given by, Moment of a force about an axis = F × d, where "F" is the magnitude of the force and "d" is the arm of the force.