A particule of mass m is projected with a speed u from the ground at an angle `theta=pi/3` w.r.t. horizontal (x-axis). When it has reached its maximum heighrt, it sollides completely inceastically with another prarticule of the same mass and velocity u `hati.` The horizontal distance covered by the combined mass before reachining the ground is :

Options

A. `(3sqrt(6)u^2)/(8g)`
B. `(3sqrt(3)u^2)/(8g)`
C. `(u^2)/(8g)`
D. `(sqrt(3)u^2)/(g)`

Answer

B