it is pretty simple question. i am not abe to figure it out how should i do.

i have a jumping up animation and landing animation. i want to jump at certain height and then fall using landing animation. what is the best way. please note i want my falling animation to play at soon as i have reached certain height.

Assuming you are only doing GetKeyDown to jump, I would just have the whole jump in 1 animation and time it with the jump.

Although if you are doing hold to jump, then just do:

if (Input.GetKeyDown(KeyCode.Space)){
       // Play going up anim
}

if(Input.GetKeyUp(KeyCode.Space)){
       // Play going down anim
}