A particle of massmmoves with speed 2vto the right, while another particle of the same massmmoves with speedvtoward the

Question

A particle of mass m moves with speed 2v to the right, while another particle of the same mass m moves with speed v toward the left, as shown in figure I. Their paths are separated by a distance b. At t = 0, when they are both at x = 0, they stick to a pole of length b and of negligible mass. For t > 0, consider the system as a rigid body of two masses m separated by distance b, as shown in figure II. The correct relation for the motion after t = 0 of the particles initially at y = b/2 is

Answer

Option 1

Option 2

Option 3

Option 4