A 20-Kg Mass Oscillates in One Dimension with Simple Harmonic Motion

question 55

Multiple Choice

A 2.0-kg mass oscillates in one dimension with simple harmonic motion on the end of a massless spring on a horizontal frictionless table according to x = 6/ $\pi$ ) cos $\pi$ t + 3 $\pi$ ) where the units are SI. The total mechanical energy of this system is

• A) 1.0 J
• B) 3.0 J
• C) 5.0 J
• D) 7.0 J
• E) 9.0 J

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