8 11 120 140 156 163 170 186 A weight is attached to a spring suspended vertically from a ceiling. When a driving force is applied to the system, the weight moves vertically from its equilibrium position, and this motion is modeled by sin 2t + cos 2t where y is the distance from equilibrium (in feet) and t is the time (in seconds) Use the identity asin BO + bcos BO = va2+ b2 sin(Be + C) where C = arctan(b/a), a > 0, to write the model in the form y = va2+ b- sin(Bt + C). a. 24 5 - sin(2t - 0.9273) Oby = sin(2t-0.9273) D c. y = sin(2t + 0.9273) Od. _ 24 = - sin(2t + 0.9273) 12:50 A 9/19/202