At school, my teacher asked us a question, where he didn't know the answere on too. The other teachters were not agreed to eachother about the answere. This is the question: A trampoline jumper jumps with jumpingstilts ( http://www.tanomi.com/shop/images_item/poweriser_01.jpg ) (shoes whith suspension) off of a stair one time from one meter hight. He tries to get as high as possible, and pushes himself as far as he can. And now the question is: when does he get OBVIOUS higher? a: With the stilts on his feet b: With the stilts in a backpack. (means same weight) or c: Doesn't make any difference, with or without the suspension-stilts. I need the answere verry hard, can anybody please help me? Thanks!!!