Question

For calculating Moment of a vertical force at point the perpendicular distance
will be considered is
​

Answer 1

moment = force x perpendicular distance from turning point. You consider the weight of the aluminium beam to act through its centre of mass 2.5 m from either end, but it is 0.5 m from the steel rod which is effectively the pivot point on which you base your moment calculations.

Answer 2

For calculating the moment of a vertical force at a point, the perpendicular distance that will be considered is the horizontal distance between the force and the point.

• The moment of a force at a point can be defined as the ability or tendency of this force to rotate the body about the given point. It can be said as the rotational effect of a force.
• It is given by the product of the given force (say F) and the perpendicular distance (d) of force 'F' from the point about which the moment is being calculated. Thus $M=F \times d$, where M is the moment.