Two charged particles of masses m and 2m are placed distane d apart on a smooth horizontal table. Because of their mutual attraction, they move towards each other and collide. Where will the collision occure with respect to the initial positions?

Two particles of mass M and 2M are at a distance D apart. Under their mutual force of attraction they start moving towards each other. The acceleration of their centre of mass when they are D/2 apart is :

Two particles of mass M and 2M are at a distance D apart. Under their mutual force of attraction they start moving towards each other. The acceleration of their centre of mass when they are D/2 apart is :

Two particles of masses 2 m and 3 m are at a distance .d. apart. Under their mutual gravitational force, they start moving towards each other. The accelaration of their centre of mass when they are d/2 apart is

Two particles of masses 4kg and 6kg are separated by a distance of 20cm and are moving towards each other under mutual force of attraction, the position of the point where they meet is

Two particles A and B of masses 2m and m are placed on a smooth surface at separation d . They move towards each other due to the mutual attractive force. (i) The particles will meet at distance d//3 from the initial position of mass 2m . (ii) The speed of A will be half of speed of B until the particles collide (excluding the initial speed). (iii) The distance covered by B is always double that covered by A until the particles collide. (iv) The velocity of center of mass is always zero.