system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does a projectile's velocity matter more than mass in terms of kinetic energy.

I have a background in long range shooting and am trying to explain to a novice that the kinetic energy of a projectile is 1/2m(v^2) and because of this mass is  it as important as velocity when it comes to calculating kinetic energy. No matter what I say to this person, they do not understand that heavier is not as important as the velocity in regards to this function.

Can someone please ELI5 so I can make this person understand that the faster a bullet projectile moves is more important than its weight. Bonus points if you can describe terminal ballistics of an object impacting and transferring energy.
gpt
Kinetic energy is *1/2* times *mass* times *velocity* **times velocity**. That's right, velocity is in there twice, multiplied together. That makes it twice as important.

If you double the mass, you double the energy.
If you double the velocity, you quadruple the energy.

If they don't get it after that, then you need to give up because they've decided that they're right on a political or religious level. This thought is now part of their personal belief system, and nothing you say will change their mind.