1.

The center of gravity of the semi-circular disc of radius 'a' is

A. \(\left( {\frac{{2a}}{\pi },0} \right)\)
B. \(\left( {\frac{{3a}}{{4\pi }},0} \right)\)
C. \(\left( {\frac{{4a}}{{3\pi }},0} \right)\)
D. \(\left( {\frac{a}{2},\frac{a}{2}} \right)\)
Answer» D. \(\left( {\frac{a}{2},\frac{a}{2}} \right)\)


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