An Object Undergoing Simple Harmonic Motion in the X-Direction Has $\pi$

An object undergoing simple harmonic motion in the x-direction has a period of 2.0 seconds,an amplitude of 5 cm and begins its oscillation at t = 0 at its maximum value of x.What equation could describe its motion?

A) x(t) = 0.05 sin (2.0t + $\pi$ /4)
B) x(t) = 0.05 cos(2.0t + $\pi$ /4)
C) x(t) = 0.05 sin( $\pi$ t - $\pi$ /4)
D) x(t) = 0.05 cos( $\pi$ t)
E) x(t) = 0.05 cos( $\pi$ t - $\pi$ /4)

Correct Answer:

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