1.4 0.7 -0.7 -1.4 t (s) The graph above shows the position of an object in simple harmonic motion as a function of time. (If you choose to approximate pi, use at least 4 significant digits) What function describes the position of the object as a function of time? X(t) = (1.4) sin(3.1416)t What function describes the velocity of the object as a function of time? V(t) = 4.3982 cos (T)t What function describes the acceleration of the object as a function of time? a(t) (ш) х

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