Recent content by OldPilot

  1. O

    How come a heavy object and a light object fall at the same speed on earth

    Mass and Inertia cancel each other out. It takes more force to accelerate a larger mass.
  2. O

    need help with physics?

    Energy = Work Energy is conserved Potential Energy @ storage room = Kinetic Energy of falling sack at bottom PE = MGH KE = 0.5 MV^2 Work = Force * distance 1) 102 N * 55 m = 5,610 J or Weight = 102 N = MG = 10.41 kg PE = MGH = 10,41 * 9.8 m/s^2 * 55 m = 5610 J 2) 5610 J 3) 5610 J
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