a. What is the necessary forcing force for an oscillator of mass m with damping coefficient γ to begin to perform harmonic oscillations with natural frequency ω0 according to the law x = A cos(ω0 t − φ)?
b. The amplitude of the forcing force is F0, its frequency ω = ω0. Determine the amplitude of the forced oscillations. How many times greater is it the deflection of the oscillator when a constant force F0 is applied?