What i want to achieve is making those parts fly off when a part hits something. I know how to make it summon the debris, i even know how to make destructible terrain i am just confused on how i can insert a body velocity to make something curve like that ^
Are you talking about the white block Parts that fly off, the white wedges that fly away from the player, or the blue effect that is around the players feet?
If it’s just the Parts then use @johanjv’s suggestion. If you want the effects then you will need to learn Beams or Particle effects.