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

question 42

Multiple Choice

The displacement from equilibrium of an oscillating weight suspended by a spring is given by​ $y = 2 \cos 6 t$ ​ where y is the displacement in centimeters and t is the time in seconds (see figure) .Find the displacement when $t = 7$ .(Round your answers to nearest tenth. ) ​ ​

• A)1.200 cm
• B)1.100 cm
• C)1.000 cm
• D)0.800 cm
• E)1.300 cm

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