I have little problem with physics and I do not know how to formulate question to get help of a google.
Say, in my settings I have a Boxers (and other street martial artists) which can store impact energy (Charge it by hitting something in charging mode - the hit in charging mode will not cause any damage at all, energy is sucked inside). If fully charged boxer can release instantaneously 5000J of energy into opponent jaw, what is gonna happen? If the opponent's can be sent flying by the hit, would attacker's wrist remain intact? I am sorry I do not have strong grasp on physics. All newton laws during impact applicable. I am going to give here some universal numbers if someone would like to do mathematical explanation:
Hero's weight: 70kg
Hero's unmodified punch: 500J
Weapons's released energy: 5000J
Enemy's weight: 100kg
What is gonna happen with both participants?
What is gonna happen with Hero if he hits solid wall from stone?