Calculating kinetic and potential energy

[DmarcvelCOO]

Two people pushed 2 500tonne objects separately at a speed of 25m/s each. One pushes for 300 seconds the other pushes for only five seconds. Normally their kinetic energy will be the same at 1,562,500 joules for each but is clear that the one did more work than the other because pushing an object continuosly for 300 seconds requires more energy from the pusher than 5 seconds. The same thing can be said for lifting an object of the same mass at the same height for the given periods of time. I'm proposing that for kinetic and potential energy calcs the energy should be multiplied by the time length of the feat. This can be used for=

1. Lifting feats

2. Pushing/pulling feats

3.tornado , hurricane, and other weather phenomenon

4. Running feats. Eg, a person running 20m/s for 1 minute is less impreve than a person running at lower speeds like 15m/s for 2 hours. As the latter shows more endurance or durability

I don't know how to explain this scientifically but i hope someone can do so.

 

[The_Everlasting]

"Normally their kinetic energy will be the same at 1,562,500 joules for each but is clear that the one did more work than the other because pushing an object continuosly for 300 seconds requires more energy from the pusher than 5 seconds"

No. That's not how kinetic energy works. Kinetic energy is determined by an object's mass and speed, nothing with how long it's moving. Just because a person moved it for longer at the same speed doesn't make him stronger, it just means they have better stamina.

 

[DmarcvelCOO]

But one did more work than the other that is my point. I'm not saying that the kinetic or potential energy is more just that one did more work than the other. Take the example i gave for running.

 

[The_Everlasting]

It doesn't relate to energy or strength, just for how long you can do it.

What's faster, someone running at the speed of light for a second, or someone running at the speed of sound for an hour?

 

[DmarcvelCOO]

I'm talking about potential and kinetic energy not speed.

Just by the way the speed of sound person would have traveled 308700000 metres in 250 hours it the speed of light person would travel 300,000,000 metres in a second . Light speed person is still faster but sound speed traveled a longer distance for a longer period of time.

My thread is attempting to differentiate between a person lifting a boulder easily from a longer period of time that another person who lifts it difficulty for a shorter period of time at the same height

 

[The_Everlasting]

Again, the amount of time you do something doesn't affect how much energy you emit with it.

 

[Kaltias]

KE = (m*v^2)/2

Time doesn't affect it, only mass and speed do.

 

[Kaltias]

Only way time affect it is if they move something a certain distance in a set amount of time, but that's because your speed is a variable in this case. Kinetic energy measure the energy an object has at a set instant. Moving an object of 2 kilos at 10 m/s will always be worth 100 joules of energy, you could it for a second or a century and it would stil be 100 J.

 

[Amelia_Lonelyheart]

I think you're mixing up Joules and Watts. If I understand correctly, Watts are Joules/second and thus more Joules are produced per second. However, we just use the "initial yield" of Joules instead of how many Joules per second something produces.

 

[DmarcvelCOO]

So if i run at the speed of sound for a minute I use the same energy if i run for a year? That is my body see the same amount of energy for both tasks. A car with a tank full will be driven longer than if the fuel tank was has half full? Because the longer the car runs the more fuel it uses

 

[Kaltias]

That's work, not energy. Work is Energy*time.

 

[Kaltias]

Basically the difference is that work is how much energy you are able to produce in total before needing to stop. KE is how much energy you can deliver in one go.

 

[DmarcvelCOO]

Work is not energy*time, that s power. Work is measured n Joules

Look at this article https://en.m.wikipedia.org/wiki/Action_(physics) https://physics.stackexchange.com/questions/154451/what-do-units-like-joule-seconds-imply and https://en.m.wikipedia.org/wiki/Joule-second. Im not a physics exert but they describe a unit and quantity that multiply energy by seconds . And help prove my point although it is in a different unit it can still be applied

 

[Kaltias]

The last guy in your second link explained it perfectly. It's not a flow of energy, it's a reserve of energy, like a battery.

 

[DmarcvelCOO]

So 500 Joules second is if throw a 10 kilogramme ball 5m/s and it remaining s at that speed for two seconds??? So the energy source is within the person's body and he or she uses it in the above manner. So 250 joules second will be the same feat only for one second. Therefore both aren't exactly same though the kinetic energy is the same.

500Js>250Js

 

[Kaltias]

If you throw it the only thing you are applying is regular KE, you aren't pushing it.

Also, an object doesn't "remain" at a certain speed if you throw it, it decelerate constantly until it stops.

 

[Reppuzan]

@Dmarcvel000

We don't quantify characters based on how much damage they're able to do over time, we do so by how much damage they're able to put out in an instant.

Applying a force over a longer period of time does not change the end result since the same amount of energy is being applied, it's simply over a longer distance and timeframe.

Thus, as The Everlasting stated, it would simply be a stamina feat, not an AP or Durability feat.

 

[DmarcvelCOO]

Repuzan, if i shoot a laser. The total energy output for the laser depends on how long it lasts. If it lasts five seconds seconds before it melts ice , It won't melt ice in a second and technically nothing can be done instantly as there is always speed. Unless the speed is infinite it isn't instant.

So if it is stamina how will it affect a character profile.

Kaltias what about creating a tornado .

 

[Kaltias]

https://vsbattles.fandom.com/wiki/User_blog:ThePerpetual/Esdeath_Freezes_the_Nation#comm-438725

Here is a good example of how you should calculate a feat like a tornado or a storm.

You find the Watt value then multiply it for the timeframe.

 

[Reppuzan]

@DmarcvelCOO

But we measure in terms of damage per hit, not damage over time. There's a difference.

A Solar System buster can go around and wipe out galaxies solar system by solar system, but we still don't rate them as Galaxy level since they have to take them apart one solar system at a time. Since they didn't destroy the whole galaxy in an instant, they're not Galaxy level.

 

[DmarcvelCOO]

Reppuzan in my examples i am implying that the work is done continuosly not with pauses in between,

Kaltias,,, i haven't been able to find the power or 'wattage' of a tornado so i am proposing the kinetic energy e multiplied by the number of seconds it lasts

 

[Reppuzan]

@Dmarcvel

It doesn't matter. I already explained to you that destroying something bit by bit doesn't qualify for an AP Upgrade.

We have rules on how to calculate feats and we can't just ignore them because you want us to.

 

[DmarcvelCOO]

But doing destroying it with a continuous uninterrupted assault does like in one punch or in a single blast of energy

I'm not saying that the rules be ignored I'm saying that this can be added to the rules. I never said we should change the rules, if that's what i have been saying sounds like, that's not what i mean

 

[Reppuzan]

@DmarcvelCOO

We are not modifying our rules to accommodate something that isn't attack potency. I'm sorry, but I'm closing this.