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# CBSE Class 12-science Answered

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Asked by jain.pradeep | 27 Apr, 2019, 05:06: PM
Expert Answer
Let us have origin of coordinate axes at centre of frame. Let center of each metal piece is at distance a from origin.

x- coordinate of CM = ( m×a + m×0 -m×a + 7m×0)/(8m)  = 0
y-coordinate of CM = ( m×0 +m×a + m×0 -7m×a )/(8m)  = (-6/8)a  = (-3/4)a

coordinate of CM (0, -0.75a) , hence point D may be the CM
Answered by Thiyagarajan K | 27 Apr, 2019, 08:39: PM

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