Animation Problem .

Hello , i was doing a simple cube animation(jump) using unity animation . Then i face the problem that animation plays on the same position not at the updated position . So , after lot of searching i found out that i need to do parent-child relation and then do the animation . But , i am little bit confuse about the character controller . What i am confuse about are following .. 1) Do i need to put character controller and animation component on parent ?? 2) I use a jump animation in which cube moves 2 unit upwards . When there is a collider above the object it still plays the jump animation and does not stop . How is this all handled ??