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Four rods AB, BC, CD and DA have mass m,...

Four rods AB, BC, CD and DA have mass m,2m,3m and 4m respectively. The center of mass of all the four rods

A

lie in region 1

B

lie in region 2

C

lie in region 3

D

lie at 0

Text Solution

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The correct Answer is:
A
`C_(1) rightarrow` Position of center of mass of rods AB and CD(nearer to CD, as it is heavy)

`C_(2) rightarrow` Position of center of mass of rods BC and DA.
`C rightarrrow` Overall center of masss of all four rods and it lies in region 1.
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