The Displacement from Equilibrium of an Oscillating Weight Suspended by a Spring

question 167

Multiple Choice

The displacement from equilibrium of an oscillating weight suspended by a spring is given by $y ( t ) = 4 \cos ( 8 t )$ , where y is the displacement in centimeters and t is the time in seconds.Find the displacement when $t = 1.25$ , rounding your answer to four decimal places.

• A)2.2693 cm
• B)-3.3563 cm
• C)-0.7275 cm
• D)-6.5364 cm
• E)10.0903 cm

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