John is looking to develop a Python program capable of calculating the trajectory of a projectile. The projectile is launched with an initial velocity and angle, aimed at reaching a target positioned at a distance l $2.$However$,$ there's an obstacle of height h located at a distance l $1$from the launch point. Given the parameters h $,$l $1,$and l $2,$the task is to write a program that determines the required launch angle and initial velocity to successfully overcome the obstacle and reach the target. And a projectale graph. it should be a paroblic curve where it ends at $($l$2,0)$