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Two particles are separated by a distance d. When the positions of the two particles are interchanged, the shift in the position of their centre of mass is d/3. If the mass of lighter particle is m, the mass of heavier particle is 

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By Expert Faculty of Sri Chaitanya
a
3m2
b
4m3
c
2m
d
3m

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detailed solution

Correct option is C

let m1  be smaller mass, thenx1=m2dm1+m2 and x2=m1dm1+m2x1-x2=m2-m1dm1+m2=d3⇒m2=2m1=2m


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