MOMENT OF INERTIA

                            MOMENT OF INERTIA :-     

• Moment of inertia(MOI) is also known as the rotational inertia.

• Moment of inertia(MOI) may be due to the 

       (a) Mass and (b) Area

• Selection of MOI depends upon our requirement in problems.

• MOI of the plane area is purely mathematical term, It is one of the most important term of the properties of area.

• Second moment of area is known as moment of inertia due to area.

• MOI is the product of area of body and square of the distance between the axis and centroidal point.

• MOI=I=Area x Square of distance 

• Unit of Moment of Inertia=m4

Moment of inertia(MOI) of some regular plane area:

Moment of inertia : Rectangle

Moment of Inertia:Circle 

Moment of Inertia:Semi circle