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CBSE Class 11-science Answered

a square is made by joining 4 rods each of mass m and length its mi abt an axis pq in its plane and is passing through 1 of its end
Asked by SELVA | 05 Jun, 2019, 04:11: PM
answered-by-expert Expert Answer
Moment of inertia I of square made up of four rods about an axis passing through PQ as shown in figure is
sum of moment of inertia about the axis passing through PQ of individual rods.
 
I = IPQ + IPR + IRS + IQS = 0 + (1/3)ML2 + ML2 + (1/3)ML2  = (5/3)ML2 
 
where M is mass of each rod and L is length of each rod
Answered by Thiyagarajan K | 05 Jun, 2019, 06:35: PM
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