Solve the Problem $\frac { 5 } { \pi }$ Cycles Per Second, Determine a Trigonometric Model That Gives the Pulled

question 71

Multiple Choice

Solve the problem.
-A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the frequency of the system is $\frac { 5 } { \pi }$ cycles per second, determine a trigonometric model that gives the position of the weight at time $t$ seconds.

• A) \(s ( t ) = - 4 \cos 10 t\)
• B) \(s ( t ) = 4 \cos 10 \mathrm { t }\)
• C) \(s ( t ) = 4 \pi \cos 5 t\)
• D) \(s ( t ) = - 4 \cos \frac { 5 } { \pi } t\)

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