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A-6. The centre of mass of a system of particles is at the origin. From this we conclude that(A) The number of particles on positive x-axis is equal to the number of particles on negative x-axis(B) The total mass of the particles on positive x-axis is same as the total mass on negative x-axis(C) The number of particles on X-axis may be equal to the number of particles on Y-axis.(D) f there is a particle on the positve Xaxis, there must be at least one particle on the negative X-axis |
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