I want to know how can i make an enemy "move back" when hitted with a sword, as in a Zelda game. I am currently applying impulse at angle, but the enemy takes too long to stop, even if i set friction or linear damping to 1. I have also tried to set it into inmovable after half a second, but this looks "unnatural". I need it to go back fast so it seems as a powerful hit, but stop quickly and smoothly at a short distance. How can i achieve this effect?