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Statements : (a) Allgebric sum of moments of mass about centre of mass is equal to zero (b) x-co-ordinate of centre of mass of system of particles in a plane is represented by x_(cm)=(1)/(M)summ_(1)x_(1) (c ) x-co-ordinate of a rigidbody of continuous mass distribution represented by x_(cm)=(1)/(m)intxdm |
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Answer» a and B are true |
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