[-/1 Points] DETAILS As we discussed earlier in Problem Set 4.2, any object or quantity that is moving with a periodic sinusoidal oscillation is said to exhibit simple harmonic motion. This motion can be modeled by the trigonometric function y = A sin (wt) or y = A cos (wt) where A and w are constants. The frequency, given by f = 1/period represents the number of cycles (or oscillations) that are completed per unit time. The unit used to describe frequency is the Hertz, where 1 Hz = 1 cycle per second. A mass attached to a spring is pulled downward and released. The displacement of the mass from its equilibrium position after t seconds is given by the function d = A cos(wt), where d is measured in centimeters (see the figure). The length of the spring when it is shortest is 15 centimeters, and 27 centimeters when it is longest. If the spring oscillates with a frequency of 0.4 Hertz, find d as a function of t. d = Equilibrium position 5:10 PM 5/10/2023