How can i make a jump pad?

Im making a game and i have no idea how to make a bounce pad. i made a red circle and i want it to launch players into air does anyone know how to do that?

red circle position: global variable(jumpPadPosition)

rule - ongoing each player

condition:
- has spawned(event player) == true
- distance between(event player, global variable(jumpPadPosition)) <= *radius*

action:
- apply impulse(event player, up, 50, to world, cancel contrary motion)