Re: Kinetic energy of two bodies

!!!ThunderBoy!!! wrote:
OK, here is the problem. :)

We have two bodies, A which is lighter and B which is heavier!
Both bodies are pushed with the force and under it they cross the same distance.
Both forces have same direction and are equal to each other!

So:
mass of A < mass of B
Fa=Fb
crossed distance of A = crossed distance of B


My question is, will the kinetic energy of bodie A be greater then the one of body B or will they be equal?
Here is the picture: http://img443.imageshack.us/my.php?image=hmwk7.gif




Kinetic Energy is observer dependent.... what's the frame of reference?
What mathematical expresson have you derived?
.

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