The good old crazy ball

A small ball is projected at an angle $\theta$ with a velocity $v_{ 0 }$ and collides with the ground at a point. For angles ${ \theta }_{ 1 }={ 30 }^{ o }$ and ${ \theta }_{ 2 }={ 60 }^{ o }$ the second collision takes place at points A and points B. Find the distance between A and B (in $m$ ).

Given ${ v }_{ 0 }=4m/s$ , $g=10m/{ s }^{ 2 }$ . Here $\mu$ represents the coefficient of kinetic friction and $e$ represents the coefficient of restitution.