Moment of Inertia of a Mass

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

Single Mass formula

(Eq. 1)  $$\large{ I = m r^2 }$$

Multiple Masses formula

(Eq. 2)  $$\large{ I = m_1 r_1{^2} + m_2 r_2{^2} + m_3 r_3{^2} }$$

Where:

$$\large{ I }$$ = moment of inertia

$$\large{ m }$$ = mass

$$\large{ m_1 }$$ = mass

$$\large{ m_2 }$$ = mass

$$\large{ m_3}$$ = mass

$$\large{ r }$$ = radius

$$\large{ r_1 }$$ = radius

$$\large{ r_2 }$$ = radius

$$\large{ r_3 }$$ = radius