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Questions  

Five uniform circular plates, each of diameter b and mass m, are laid out in a pattern shown. Using the origin shown, find the y coordinate of the center of mass of the five-plate system.

a
b/5
b
b/3
c
4b/5
d
2b/5

detailed solution

Correct option is C

ycm=m⋅0+m⋅0+m⋅b+mb+m2b5m=4b5

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