A pendulum of length L swings with an amplitude θ and a frequency f as shown above.
Which of the following statements is true about the swinging pendulum?
I. The greatest restoring force and the greatest velocity occur at the same point.
II. The greatest restoring force and the greatest acceleration occur at the same point.
III. The greatest acceleration and the greatest velocity occur at the same point.
(A) I only
(B) I and II only
(C) II only
(D) I and III only
(E) I, II, and III
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