What is the range for the graph shown? a) -3 ≤ y ≤ 2 b) -3 and 2 c) -3 ≤ y ≤ 3 d) -2 ≤ y ≤ 3

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).