Solve the problem.A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the period of the system is 
second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. y = -4cos 6?t
B. y = 4cos 
t
C. y = 4cos 6?t
D. y = -4cos 3?t
Answer: A
Mathematics
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