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Part 1
An object attached to a coiled spring is pulled down a distance, |a|, from its rest position and then released. Assuming that the motion is simple harmonic with period T, write a function that relates the displacement, d, of the object from its rest position after t seconds. Assume that the positive direction of the motion is up.
|a|equals2; Tequals9pi seconds
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Part 1
Choose the correct function below.
A.
d(t)equals2 cosine left parenthesis two ninths t right parenthesis
B.
d(t)equals2 cosine left parenthesis nine halves t right parenthesis
C.
d(t)equalsnegative 2 cosine left parenthesis two ninths t right parenthesis
D.
d(t)equalsnegative 2 sine left parenthesis nine halves t right parenthesis
E.
d(t)equals2 sine left parenthesis nine halves t right parenthesis
F.
d(t)equalsnegative 2 cosine left parenthesis nine halves t right parenthesis