Mathematics, Physics, Conservation Of Energy, Geometry, Beauty.
potential energy, let’s call it P2, must then be: P2 = mg(PA’ + PB’ + PC’) = g(PA’ + PB’ + PC’), putting m = 1 Since the central point must be in equilibrium at the new point P’ (because the angles are all 120 degrees), this means the energy before and after must be the same. Thus, P1 = P2 (by the