The Equation of a Body in Simple Harmonic Motion Is $\pi$

question 44

Multiple Choice

The equation of a body in simple harmonic motion is
Y = 8.0 cos(20t + $\pi$ )
Where y is in centimeters and t is in seconds. The frequency of the oscillations is

• A) \(\pi\)/10 Hz
• B) \(\pi\)/4 Hz
• C) 10/\(\pi\) Hz
• D) 8 Hz
• E) 20 Hz

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