Physics · 2020
NEET 2020 · 14 October · Code Z6 · Q127
Three identical spheres, each of mass M, are placed at the corners of a right angle triangle with mutually perpendicular sides equal to 2 m (see…
Three identical spheres, each of mass $\displaystyle M$, are placed at the corners of a right angle triangle with mutually perpendicular sides equal to $\displaystyle 2$ m (see figure). Taking the point of intersection of the two mutually perpendicular sides as the origin, find the position vector of centre of mass.
Official answer
(2)
$\displaystyle \frac{2}{3}(\hat{i}+\hat{j})$
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