Calculating Moment of Inertia Finally, calculate / for the same object about an axis along one side(as shown) =∑mr2=ml2+m2+m02+m0 1= 2mL2 m m Physics 121: Lecture 18, Pg 8Physics 121: Lecture 18, Pg 8 Calculating Moment of Inertia... Finally, calculate I for the same object about an axis along one side (as shown): m m m m L r 2 2 2 2 N i 1 2 I = mi r i = mL + mL + m0 + m0 = I = 2mL2