An Object Oscillates with Simple Harmonic Motion According to the Equation

question 38

Multiple Choice

An object oscillates with simple harmonic motion according to the equation x = 6.0 cos3t + $\pi$ /3) where the units are SI. The speed of the object when it is at the position of x = 3.0 m is

• A) 18.0 m/s
• B) 56.0 m/s
• C) 48.9 m/s
• D) 15.8 m/s
• E) 5.73 m/s

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