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Physics · 2014
JEE Main 2014 · 2014-04-06 Offline · Q7
Four particles, each of mass M and equidistant from each other, move along a circle of radius R under the action of their mutual gravitational…
Four particles, each of mass M and equidistant from each other, move along a circle of radius $\displaystyle R$ under the action of their mutual gravitational attraction. The speed of each particle is :
Official answer
(4)
$\displaystyle \frac{1}{2} \sqrt{\frac{\mathrm{GM}}{\mathrm{R}}(1+2 \sqrt{2})}$
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