The Displacement of an Object Oscillating on a Spring Is $\omega$

question 8

Multiple Choice

The displacement of an object oscillating on a spring is given by x(t) = x_mcos( $\omega$ t + $\phi$ ) . If the initial displacement is zero and the initial velocity is in the negative x direction, then the phase constant $\phi$ is:

• A) 0
• B) \(\pi\)/2 radians
• C) \(\pi\) radians
• D) 3 \(\pi\)/2 radians
• E) 2 \(\pi\)radians

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