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trueprober
Lv 7
trueprober asked in Science & MathematicsPhysics · 6 years ago

Centre of mass. As three masses are located at (a,0), (0,b) and (0,0) with masses m1, m2 and m3, where will be the centre of mass?

2 Answers

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  • civil_av8r
    Lv 7
    6 years ago
    Favourite answer

    For point masses

    CG = Sum of the masses*position / sum of the masses

    CG = (m1*r1 + m2*r2 + m3*r2) / (m1+m2+m3)

    CG = (m1*(a,0) + m2*(0,b) + m3*(0,0)) / (m1+m2+m3)

    CG = ((m1*a,0) + (0,m2*b) + (0,0)) / (m1+m2+m3)

    CG = ((m1*a + 0 + 0),(0 + m2*b + 0)) / (m1+m2+m3)

    CG = (m1*a,m2*b) / (m1+m2+m3)

  • Anonymous
    6 years ago

    So lost

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