Voltage sources U1(t) and U2(t) are enabled and disabled at the same time. When U1(t) and U2(t) are enabled at t=0 a current iL passes through the Coil with inductance L=0.2 H, plunger is pulled towards inside the stator closing the switch A and causing the unit to be activated to start working by taking power from voltage source E. Also voltage VC2 across the capacitor C2 is applied to the Voltage to Force Converter and a force of F(t)=1.25VC2 Newton is produced. The direction of the force F(t) depends on whether switch S1 is closed or S2 is closed as shown on the figure. System parameters are given below:
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