A-Level Physics OCR A H556

3.2.3: Equilibrium

#3.2.3a

moment of force

#3.2.3b

couple; torque of a couple

#3.2.3c

the principle of moments

#3.2.3d

centre of mass; centre of gravity; experimental determination of centre of gravity

#3.2.3e

equilibrium of an object under the action of forces and torques

#3.2.3f

condition for equilibrium of three coplanar forces; triangle of forces.

3.2.2

Motion with non-uniform acceleration

3.2.4

Density and pressure