1.27 know and use the principle of moments for a simple system of parallel forces acting in one plane

1.27 know and use the principle of moments for a simple system of parallel forces acting in one plane

Here, the pivot is placed in the centre of the beam which balances it upon the pivot. All the weight is acting upon it. If the pivot is moved leftwards, the distance on the right hand side will be higher and we will see a clockwise turning effect.