An Object Is Attached to a Coiled Spring $= 14$ In; Period

question 300

Multiple Choice

An object is attached to a coiled spring. The object is pulled down (negative direction from the rest position) and
then released. Write an equation for the distance of the object from its rest position after t seconds.
-amplitude $= 14$ in.; period $= 6$ seconds

• A) \(d = - 14 \cos \frac { 1 } { 3 } \pi t\)
• B) \(\mathrm { d } = - 6 \cos \frac { 1 } { 7 } \pi \mathrm { t }\)
• C) \(d = - 14 \sin \frac { 1 } { 3 } \pi t\)
• D) \(d = - 14 \cos \frac { \pi } { 6 } t\)

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