# A solid disk of radius R and mass M is hung from a point on its circumference. The disk is...

## Question:

A solid disk of radius R and mass M is hung from a point on its circumference. The disk is momentarily pushed after which it performs small angle oscillations about its pivot. Derive the equation for calculating the period of the oscillations.

## Physical Pendulum

A physical pendulum is any real pendulum that uses an extended body, assuming that all of its mass concentrated at a point called center of mass.

## Answer and Explanation:

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Let us recap important information from the question

• Mass of the disc is {eq}\ M {/eq}
• Radius of the disc is {eq}\ R {/eq}

Let us draw a diagram of...

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#### Learn more about this topic: Pendulums in Physics: Definition & Equations

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Chapter 11 / Lesson 6
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After watching this lesson, you will be able to explain what a pendulum is, why it is an example of simple harmonic motion, and use equations to solve pendulum problems. A short quiz will follow.