Two spheresAandBdeep in space are separated by  d1​ = 9 m, and have masses mA​=1020 kg and mB​=280 kg. A third sphere C, with mass mC​=450 kg is located d2​=7.50 m below the centre-of-mass of spheres A and B(ABcm​). All distances are measured from the centre-of-mass of each sphere. (a) Compute the centre-of-mass position for A and B(ABcm​), using A as the origin.

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