AP EAMCET Medical 23 Apr 2019 Shift 2 Paper

Two point objects A and B each of mass 3 g and initially at rest are connected by massless threads as shown in the figure. A constant force 2 N acts on the system at point P along OP. After the point 'O' has moved a distance 20 cm in the direction of force, the two objects collide and stick together. The displacement and velocity of the centre of mass of the system immediately after collision are respectively