1. The problem statement, all variables and given/known data http://www.xtremepapers.com/CIE/International A And AS Level/9702 - Physics/9702_w10_qp_12.pdf question 14 2. Relevant equations mgh=gpE fxd=workdone 3. The attempt at a solution I HAVE NO IDEA WHY MY ANSWER IS WRONG!! AND THIS IS GETTING ME so WORRIED ABOUT MY CONCEPTUAL UNDERSTANDING! I found the component down the surface which was 100N, I added 150N to this(as he has to overcome the friction) so now i just use Fxd=250x1.5=375j. But the actual answer is 750j HOW COME??