Questions
Two semicircular rings of linear mass densities and 2 and of radius 'R' each are joined to form a complete ring. The distance of the center of the mass of complete ring from its center is
detailed solution
Correct option is B
Let the two half rings be placed in left and right of y-axis with centre as shown in figure.Then the coordinate of centre of mass of left and right half rings are −2Rπ,0 and 2Rπ,0.∴ x-coordinates of centre of mass of complete ring ism−2Rπ+2m2Rπ3m=2R3πTalk to our academic expert!
Similar Questions
The disc of mass M and radius R with uniform surface mass density as shown in the figure. The centre of mass of quarter disc (the shaded area) is at the position where x is _____, (Round off to the Nearest integer)
[a is the shaded area as shown in the figure]
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