Two lead balls of masses `m` and `5m` having radii `R` and `2R` are separated by `12R`. If they attract each other by gravitational force, the distance covered by small sphere before they touch each other is

Two spherical bodies of masses m and 5m and radii R and 2R respectively, are released in free space with initial separation between their centres equal to 12 R. If they attract each other due to gravitational force only, the distance covered by smaller sphere just before collision is

Two spherical bodies of masses m and 5 m and radii R and 2R respectively are released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only then find the distance covered by smaller sphere just before collision

Two spherical bodies of masses m and 6m and radii R and 2R respectively are released in free space with initial separation between their centres equal to 10 R . If they attract each other due to gravitational force only , then the distance covered by smaller sphere just before collisions will be

Two spherical bodies of masses m and 4 m and radii R and 2R respectively are released in free space with initial separation between their centres equal to 15 R. If they attract each other due to gravitational force only, then the distance covered by smaller sphere just before collision will be

Two spherical bodies of mass M and 5M & radii R & 2R respectively are released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then the distance covered by the smallar body just before collision is

Two concentric shells have masses M and m and their radii are R and r , respectively, where R gt r . What is the gravitational potential at their common centre?

Two equal masses separated by a distance d attract each other with a force ( F ). If one unit of mass is transferred from one of them to the other, the force

Two identical spheres each of mass M and radius R are separated by a distance 3R. The force of attraction between them is proportional to