Two particles of equal mass go around a circle of radius under the action of their mutual gravitational attraction. The speed of each particle with respect to their center of
Step 1: Given
Step 2: Formula used
Step 3: Solution
Let the speed of rotation of each particle be .
By equating gravitational force with centrifugal force
Gravitational constant
The distance between the center of the two particles.
Angular velocity of the particles
Now,
From the relation between angular velocity and linear velocity
Hence the required answer is .