Two massive particles of masses `M` & `m` `(M gt m)` are separated by a distance `l`. They rotate with equal angular velocity under their gravitational attraction. The linear speed of the particle of mass `m` is

Two particles of masses m_(1) and m_(2) (m_(1) gt m_(2)) are separated by a distance d. The shift in the centre of mass when the two particles are interchanged.

Three particles of equal mass M each are moving on a circular path with radius r under their mutual gravitational attraction. The speed of each particle is

Three particles of equal mass M each are moving on a circular path with radius r under their mutual gravitational attraction. The speed of each particle is

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.

Two particles of masses m and M are initially at rest at an infinite distance apart. They move towards each other and gain speeds due to gravitational attraction. Find their speeds when the separation between the masses becomes equal to d.

Two particles of equal mass m go round a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle is