Recent content by adamwojciech

  1. A

    High School I have a question about pulley

    Hi I have a question about pulley. There is fixed pulley: http://en.wikipedia.org/wiki/File:Polea-simple-fija.jpg http://en.wikipedia.org/wiki/File:Polea-simple-fija.jpg where you need to use e.g. 100N to lift 100N. There is moveable pulley: http://en.wikipedia.org/wiki/File:Pulley1a.svg...