Physics question on energy - need help !

dimanche 29 septembre 2013

1. The problem statement, all variables and given/known data

Hello All !



I have this question which I cant seem to get the correct ans to.. maybe Im missing something.. (Please refer to attachment)





2. Relevant equations



POtential energy = mass x g x h



3. The attempt at a solution



ok initial amt of energy = m x g x h



final energy state =( mgh/4 + mgh/4 )= mgh/ 2



so mgh - mgh/2 = mgh/2 (my ans)



apparently correct ans is mgh/4



help , pls ? thanks !




Attached Files





File Type: docx question.docx (143.4 KB)








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