Some Definitions and Equations with Units.
Moment = Force x Perpendicular distance to pivot.
Moment: Nm (NxM hence dist. x force)
Eg. 1 Define a Moment:
When a body is in equilibrium Anticlockwise Moments = Clockwise Moments.
(Jan 09 q.5 a.)
Define a Newton:
1N is required to accelerate an object of 1kg at 1ms(^-2)
Torque of a couple = Magnitude of one of the force x Distance between forces.