Question

the centre of mass of a system of three particles of masses 1g 2g 3g is taken as the origin of a coordinate system. The position vector of a fourth particle of mass 4g such that the centre of mass of the four particle system lies at the point (1,2,3) is à( i+2j+3k) where à is a constant. The value of à is

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Answer 1

Answer:

Explanation:

Mean 2