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The Moment of a Force

The moment of a force is the force × the perpendicular distance of the line of action of the force from the pivot. It is measured in N m.

The Principle of moments states that, for an object in equilibrium:the sum of clockwise moments about any point = the sum of anticlockwise moments about that pointIn this example Fdsinθ = F2d2

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Specification: Edexcel Physics (8PH0), AS-level, Topic 2: Mechanics, statement 23. Topic: Motion.

More in Motion

All 31 lessons in Motion · All Edexcel AS-level Physics topics