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Math Help - physics momentum

  1. #1
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    physics momentum

    physics momentum-physicssss.jpg
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  2. #2
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    Re: 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??
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  3. #3
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    Re: physics momentum

    "we get Mv=MV+Mu"
    Are you sure about this? That's wrong.
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  4. #4
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    Re: physics momentum

    well i didnt carry this error forward. can u still point out what is wrong
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