Q15 Q15. A forced oscillator is acted upon by a force F = F0 sin ωt . The amplitude oscillator is given by 59 4 ω 2 - 80 ω + 15 . What is the resonant angular frequency? (a) 5 units (b) 15 units (c) 10 units (d) 20 units Share with your friends Share 3 Pintu B. answered this Dear Student , Here in this case the equation is , Amplitude ,x0=594ω2-80ω+15So comparing this with standard equation we get ,Amplitude=x0=F1mω2-ωD22-b2ωD2m2So comparing both we get that ,resonant angular frequency will be =20 units . Regards -20 View Full Answer