For the composite area shown below, determine the moment of inertia about the horizontal centroidal axis. 40 160 80 -60- 60 180 Dimensions in mm O Ix = 61.4 x 10 mm4. O Ix = 26.9 x 106 mm4. O Ix = 40.3 x 10 mm4. O Ix = 56.3 x 10 mm4. %3D

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Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.