Recent content by normal_force

Well, the Kinetic energy exerts force, it does work...so, my idea is that...they do work...so, its force vs force...work vs work, I guess...

Okay, no, what I am saying is totally different.

Okay, but I think you are miss reading me... thinking of this, compression occurs, maybe a little...like 0.000098 meters...KE lost, thus it is doing work, Wnc to be correct. So, KE turns into work, that what stops it...

Okay...well, the final velocity: -80.2 m/s for ball and cart is 5.22 M/s... I get that, what is the point?

Well, in short (TMEi ball - TMEi ball energy lost) + (- TMEi cart - (-TME cart energy lost)) = TMEf System (607.5J ball - 202.5J ball energy lost) + (- 354.37J cart - (-153.37 J cart energy lost)) = Ball 204 Joules Cart 0 Joules ---> Ball 204 Joules KE-->work-->cart displaced -->KE--> Work...

I showed in my equation the energy lost which was not 100% of the energy, a great deal of energy dissipated...but there is some energy left to do work...as it clearly shows.

Oops, sorry, didn't see it... Okay, well that is because the KE is taken up to do work... Look, Imma try to explain this a lot better...but you are not making sense.

well, this isn't a conservation of momentum problem, its better to use Work-energy, as this is what it is...its an example of mechanical energy to do work, that a small object with superior KE, inferior mass and momentum can stop a cart and do work on it.

For the sake of getting the question, I just made up a value...thats all

Okay, a moving object posses Kinetic energy...thus mechanical energy, thus the ability to do work...even without a constant accelerating force. Thus if an object has Kinetic energy, it has the ability to do work because of its energy by a virtue of motion. Here is my equation (TMEi ball -...

Not combining...but subtracting KE...KE is used up...not added in this scenario...KE goes into work...

Yes, but KE is mechanical energy, it can do work...that soccer ball has Kinetic energy, it can do work...when it slows down after it hits something, it DOES WORK...force TIMES distance... It does work when it comes to rest...KE=TME====>Wnc I don't think you guys get it or understand work-energy

Yes, But KE is mechanical energy...You the ball hits the goalies HEAD let's say, it hits his head doing work on him...as it slows down it exerts a force... Another example? Think friction..breaking car... seriously...momentum is not everything, this is a work-energy question

Yes, the energy one...

because it was off topic and I am trying to get a point off...the point being is that my scenario is correct but hard to find in nature.