watz gung wrong here
Yes, it looks like homework and as such the PF rules require your attempt first.
Once we've got that I'll gladly offer my answer to the problem.
that is wat im not geting.now ur chance...
I'd lose the attitude, I'm not going to tell you the answer. The rules of PF are that I cannot do your work for you and I have no intention of doing so. I can only provide you guidance.
So let's get you started.
What is the formula for kinetic energy? What are the two relevant formulas for work done?
its simple u cant tell the answer becuase you dont know. and my dear m not interested in the answer .
I've just derived the answer on a pad in front of me for you.
I can tell you it's relating to the KE work done and velocity equations.
Drop the attitude or no one here will help you. If you don't care about the answer I recommend this thread be locked right now as any further help will be pointless if you don't care about it.
I again refer you to the rules you agreed to when you signed up relating to you must show some attempt before we can help.
would you elaborate on your bakwas....
what kind of efforts do you want
Last chance or I'll report the thread and stop offering help. Drop the attitude.
You indicated you're not sure where to begin, so I pointed you in the direction by asking you for some equations:
stop being bossy....
the energy of the fuel will be converted to kinetic energy of the car according to half my square
they are right according o me...
So Peter is right saying it will take 3x litres of fuel to go from 100 to 200 and Paul is right saying that it will take (5/3)x litres of fuel to go from 200 to 300?
Are you telling me it would take less fuel to go from 200 to 300 than it would 100 to 200?
Again, look at the values for the speeds - there's something wrong with one set of speeds.
the train in moving in opposite direction of the car and hence in train frame of refrence corrolay pauls frame of refrence the initial speed of car is 100 and after consuming x amount of fuel it will be 500
Where did you get 500 from?
The kinetic energy to go from 100 to 200 for the car will be the same, regardless of frame of reference. The train is independent and Paul is making a mistake by adding the trains velocity into the equation.
The car goes from 0 to 100 and then 100 to 200. The fuel to go from 0 to 100 is not the same as the fuel to go from 100 to 200. The fuel to go from 100 to 200 is not the same as the fuel to go from 200 to 300. So with Paul using these values he is incorrect.
the fuel required for 0 to 100 in peters frame is same as the fuel required 100 to 200 in pauls frame
........and if u are trying to sat that paul is making mistake by adding trains velocity then how how can conclude that he is making a mistake...becuase he can never know whether he is moving or the car is moving