Uploaded Jan 27, 2016
In the mechanical simulation, the actuator connecting point D to A exerts a constant force a, the actuator connecting D to B exerts force b, and the actuator connecting D to C exerts force c.
At equilibrium, potential energy will be minimized. The PE is proportional to
Press the hint button to see a geometric construction for this point.
Under some circumstances the mass settles at one of the vertices. Can you work out what these circumstances are?