15 homework questions about “Moment, Centers mass, Centroids”.

for example: Find the center of mass of the point masses lying on the *x*-axis.

*m*_{1} = 8, *m*_{2} = 3, *m*_{3} = 5

*x*_{1} = −5, *x*_{2} = 0, *x*_{3} = 3

(

*x*,

*y*) = (

)

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