Question

Centre of mass of two thin rods of same length but made up of different materials and kept as show,can be, if the meeting point is the origin of coordinates

Answer 1

Answer:

The answer is  (L/3,L/6).

Explanation:

If they were of the same material, then center of mass must have been at L/2 and L/2 in x and y-axis respectively. But as the density of one rod is greater than the other. Thus the mass of denser rod will be more. Therefore the center of mass shifts towards heavier rod. Means the position of center of mass changes only in one axis and in another axis, it will remain at L/2. Therefore, one coordinate will be L/2 and the other will be less than L/2.  

Xcom =ml/3 +ml/3/(m+m) = L/3

Ycom = ml/3 + 0 /(2m) = L/6  

(L/3,L/6)

Answer 2

Answer:

$\frac{l}{3} and\frac{l}{6}$

Explanation:

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