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A sphere of mass $$\frac { 1 } { \sqrt { 3 } } \mathrm { kg }$$ is placed on two inclined plangle $$30 ^ { \circ }$$ and $$60 ^ { \circ }$$ with horizontal, asshown. The normal reaction at point $$\mathrm { P } ( \mathrm { in } \mathrm { N } )$$ is
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