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- Feb 14th 2013, 08:20 AMabdulrehmanshahphysics momentum
- Feb 14th 2013, 08:22 AMabdulrehmanshahRe: physics momentum
this is how i solve can u point out at what am i doing wrong

v=V-u equation 2

mv+MV=mu equation 1

multiplying eq 2 by M

we get Mv=MV+Mu equation 3

adding equation 3 and 1 we get

v=(m-M)u/(m+M) equation 4

multiplying eq 2 by m

mv=mV-mu equation 5

adding equation 5 and 1 we get

V=2mu/(m+M)

plugging these values in the energy loss in kinectic energy

mu^2{1-(m+M)2-4mM/(m+M)^2 i get 0/(m+M)^2 i know i am close but what i am doing wrong?? - Feb 14th 2013, 10:14 AMlimes5Re: physics momentum
"we get Mv=MV+Mu"

Are you sure about this? That's wrong. - Feb 14th 2013, 06:27 PMabdulrehmanshahRe: physics momentum
well i didnt carry this error forward. can u still point out what is wrong