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in my 3rd question how does it come as 0- (4*6) = -24kgm/s i thought it would be m*v= 24

Asked by 28th July 2012, 2:56 PM
Answered by Expert
Answer:
you need to find the momentum change.
and as i made a note there, about taking which direction as negative.
Answered by Expert 28th July 2012, 3:38 PM
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