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A Mass on a Spring Vibrates Horizontally on a Smooth

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A mass on a spring vibrates horizontally on a smooth level surface (see the figure) . Its equation of motion is x (t) =A mass on a spring vibrates horizontally on a smooth level surface (see the figure) . Its equation of motion is x (t)  =  sin t, where t is in seconds and x in centimeters. Find the velocity at time t.   A)    B)    C)    D)    E)    sin t, where t is in seconds and x in centimeters.
Find the velocity at time t. A mass on a spring vibrates horizontally on a smooth level surface (see the figure) . Its equation of motion is x (t)  =  sin t, where t is in seconds and x in centimeters. Find the velocity at time t.   A)    B)    C)    D)    E)


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