The graph shows the displacement from equilibrlum of a mass-spring system as a function of time after the vertically hanging system was set In motion at time t = 0. 2. 4 6 -1 -3 Assume that the units...

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Extracted text: The graph shows the displacement from equilibrlum of a mass-spring system as a function of time after the vertically hanging system was set In motion at time t = 0. 2. 4 6 -1 -3 Assume that the units of time are seconds, and the units of displacement are centimeters. The first t-intercept is (0.25, 0) and the first minimum has coordinates (1.25, – 3). What is the period T of the periodic mation? T = 4 seconds help (numbers) What is the frequency f in Hertz? What is the angular frequency w in radians / second? J = 0.25 Hertz help (numbers) 1.57 radians / second heip (numbers) Determine the amplitude A and the phase angle y (in radians), and express the displacement in the form a(t) = A cos(ut – y), with ar in meters. r(t) = meters help (formulas) With what initial displacement y(0) and initial velocity z'(0) was the systerm set into motion? 2(0) meters help (numbers) z'(0) = meters / second help (numbers)