Question

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
attraction. The speed of each particle is -
(JEE Main-2014)
GM
GM
(2)
R
R
(1), 275 GM
(1+212
(3)
z
GM
GM
(1 +212) (4)
R
VR​

Answer 1

Answer:

I think so the answer is 2 hour or else 3 is a gmgm that