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Q12CQ

Expert-verifiedFound in: Page 472

Book edition
9th Edition

Author(s)
Raymond A. Serway, John W. Jewett

Pages
1624 pages

ISBN
9781133947271

**A simple pendulum can be modeled as exhibiting simple harmonic motion when ${\mathit{\theta}}$**** is small. Is the motion periodic when ${\mathit{\theta}}$**** is large?**

Even though the motion is not harmonic, at large angles, the motion will be periodic. Through the small values, the period is constant when the amplitude increases. After that the period will become very larger because $\theta $ increases.

A simple pendulum of length *L* can be modeled to move in simple harmonic motion for small angular displacements from the vertical. Its period is

$T=2\pi \sqrt{\frac{L}{g}}$

A physical pendulum is an extended object that, for small angular displacements, can be modeled to move in simple harmonic motion about a pivot that does not go through the center of mass. If it will repeat and it is not harmonic at large angles. The motion will be periodic.

Even though the motion is not harmonic, at large angles, the motion will be periodic. Through the small values, the period is constant when the amplitude increases. After that the period will become very larger because $\theta $ increases.

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