Find the Centre of mass on img
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Find the Centre of mass of img

JEE/Engineering Exams
Physics
Solution
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Find the Centre of mass on img
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center of mass of ring is its geometric center for semi circularing 
yCM=√RSino.dm/√am

yCM =√Rsino m/2πR.R.do/√am/2πR.R.do

yCM= mR/2π-coso}/m/2π.π

 

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