It takes 1.5 seconds for a grandfather clock's pendulum to swing from left (initial position) to right, covering a horizontal distance of 10 inches.Which function models the horizontal displacement as a function of time in seconds?
Answer
A
y = 5 cosine (StartFraction 2 pi Over 3 EndFraction x)
B
y = 5 cosine (StartFraction 4 pi Over 3 EndFraction x)
C
y = 10 cosine (StartFraction 2 pi Over 3 EndFraction x)
D
y = 10 cosine (StartFraction 4 pi Over 3 EndFraction x)