The Function $y = - 2 \cos \left( \frac { t } { 3 } \right)$

question 46

Multiple Choice

The function $y = - 2 \cos \left( \frac { t } { 3 } \right)$ models the displacement of an object moving in simple harmonic motion, where y is measured in inches and t in seconds. Find the frequency of motion

• A) \(\frac { 1 } { 3 \pi }\)
• B) \(\frac { 1 } { 6 \pi }\)
• C) \(6 \pi\)
• D) \(3 \pi\)
• E) \(2 \pi\)

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