If the weights of the pendulums are equally deflected to one side and released, the system will vibrate with frequency ω1 = g/l. If, however, they are deflected by an equal distance in opposite directions, the system will vibrate with the frequency ω2 = g/l+2k/m. In general, the motion of the weights is the result of the superposition of these oscillations: x1 = B cos(ω1t+φ) + A cos ω0t, x2 = B cos(ω1t+φ) − A cos ω0t. Now, considering the force F cos ω0t acting on the left weight from the side of the spring as a forcing force, determine the value of A through the parameters F, m, ω0 and ω1. The term B cos(ω1t+φ) represents the free oscillation of the isolated oscillator. What determines the choice of parameters B and φ?