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neeraj pawar Grade: 12
        

Find the position of centre of mass of the lined section shown in fig.


 


6992-1754_6545_ss.jpg

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear neeraj


let the mass of each portion is m


first find out the COM of individual portion


COM of the upper horizontal portion = (a/2 ,2a)


COM of the upper vertical  portion = (a ,3a/2)


COM of the lower horizontal portion = 3a/2 ,a)


COM of the lower vertical portion = (2a ,a/2)


now the COM of the whole 


x' = {m*a/2 + m *a + m*3a/2 + m*2a }/4m


   = 5a/4




y' = {m*2a + m *3a/2 + m*a + m*a/2 }/4m


   = 5a/4


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Badiuddin

7 years ago
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