Figure 15-33a is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.20 rad/s; Fig. 15-33b is a partial graph of the corresponding velocity function v(t).The vertical axis scales are set by xs = 5.0 cm and vs = 5.0 cm/s. What is the phase constant of the SHM if the position function x(t) is given the form x = xm cos(ωt + ?)?
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