Recent content by 92sergey

  1. 9

    How to calculate the energy of playing See Saw

    http://3.bp.blogspot.com/_-kzA7K4dWrs/S_MNmOQpffI/AAAAAAAAAAU/NxUDhvbBw70/s1600/gambar+benda+momen.JPG i have a problem about a calculation of see aw energy. if it involve angular velocity? i have the mass of see saw, the mass of load (child or player). i need to know how much the...
  2. 9

    How to find energy value of this frame equilibrium?

    https://www.physicsforums.com/attachment.php?attachmentid=25852&d=1274225973 The A side, move down ward. The O is a pin, with no friction. The A and B have their own mass. The length of the stick or beam or frame is known. How to describe the energy of A down word until reach high h? i...