Solve the problem.The position of a weight attached to a spring is s(t) = -3 cos 7t inches after t seconds. What are the frequency and period of the system?
A. Frequency = 
cycles per sec, period = 
sec
B. Frequency = 
cycles per sec, period = 
sec
C. Frequency = 
cycles per sec, period = 
sec
D. Frequency = 7 cycles per sec, period = 
sec
Answer: A
Mathematics
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