Concentrating a mass destruction power in small points?

[ToscanitoHarsh]

Well, I am pretty ignorant when it comes to physics. I was wondering, if a character can create explosions that can blow up a mountain and then explicitly said he can focus all that power on a single punch. Would the power actually increase by applying the same to a smaller area or it would just be the same destructive force?

Thanks in advance!

 

[Lorenzo.r.2nd]

depends. sometimes the explosion of the projectile in and of itself isn't actually mt lvl, but the speed it travelled, and its density led to a mt lvl explosion when applying all of them together. see what I meant? so if his arm adds to weigh of the initial energy, but moves slower than when it launched by itself, it might not actually make that much of a difference. it would make a difference though, if he was running, or gaining speed somehow while punching, or at least before punching... but it all depends on a few thing tbh.

 

[ToscanitoHarsh]

Ah, I see. Unsurprisingly it's quite more complicated than what I thought.

Giving the specifics: I can't remember the show exactly, but there was a girl who could charge up her punches with fire ki or magic or something of the sort and during a fight she punched the mountain she was on and blew it up. Later on she explained that to avoid collateral damage she had to know how to concentrate the force on smaller areas (she intentionally cut it loose when destroying the mountain), and in a following fight she made sure the force didn't went beyond his opponent who was another human martial artist.

 

[Lorenzo.r.2nd]

there is now way of knowing the damage of the person she punched into the mt would make, so that in and of itself is kinda bs. if its fiction, its fake.