A shot of mass m is fired horizontally from the top of a tower of height `100`m, with a velocity `mu=50` m/s as shown in figure `-4.154` At a distance `100`m from the foot the tower a child throws a ball or same m in vertial direction with the same velocity `mu=50` m/s. He throws the ball such that the ball will colides with the shot in its path and merged with it makeing an object of mass `2`m. Find the distance form the child, where this object lands on ground.

Answer

`"["123.6m"from the child"]"`