Two particles of equal mass (m) each move in a circle of radius (r) under the action of their mutual gravitational attraction find the speed of each particle.

Two particles of equel mass (m) move in a circle of radius (r ) under the action of their mutual gravitational attraction.Find the speed of each particle.

Four particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction. Find the speed of each particle.

Two particles of equal mass move in a circle of radius r under the action of their mutual gravitational attraction. Find the speed of each particle if its mass is m.

For particles of equal massses M move along a circle of radius R under th action of their mutual gravitational attraction. Find the speed of each particle.