a particle of mass m strikes elastically on a wall with velocity v, at an angle 60degree from the wall then magnitude of change in momentum of ball along the wall is
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126
Accordind to question
change in momentum= -2mv sin60 î
It means momentum changes only along the normal to surface but NOT ALONG THE surface (wall) , So anwer is 0 .
Answered by
31
Answer:
the momentum is conserved along horizontal direction however along the wall momentum conserved I zero
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