- #1

- 25

- 0

## Homework Statement

A meter stick of mass 0.44kg rotates in the horizontal plane about a vertical axis passing through the 30cm mark. What is the moment of intertia of the stick? (Treat it as a long uniform rod).

## Homework Equations

Moment of inertia for a long uniform rod (axis through center): (1/12)ML

^{2}

Moment of inertia for a long uniform rod (axis through end): (1/3)ML

^{2}

I=mr

^{2}

## The Attempt at a Solution

L

_{A}=1.0m;

L

_{B}=0.70m (I'm not sure how to determine the length/axis for L

_{B}???)

I=1/3L

_{A}

^{2 }+ 1/3L

_{B}

^{2}

I=1/3(1.0)

^{2}+ 1/3(0.70)

^{2}

I= 0.50 m x N