A Simple Pendulum 22 Inches in Length Is Oscillating in Harmonic

question 126

Multiple Choice

A simple pendulum 22 inches in length is oscillating in harmonic motion. The bob at the end of the pendulum swings through an arc of 20 inches (from the far left to the far right, or one-half cycle) in about 0.4 seconds. What is the equation model for this harmonic motion?

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