- #1

- 150

- 2

## Homework Statement

A rigid body is made of three identical thin rods, each with length

*L*= 0.530 m, fastened together in the form of a letter

**H**, as suggested by the figure here. The body is free to rotate about a horizontal axis that runs along the length of one of the legs of the

**H**. The body is allowed to fall from rest from a position in which the plane of the

**H**is horizontal. What is the angular speed of the body when the plane of the

**H**is vertical?

## Homework Equations

This is really a conservation of energy question but the hard bit is to find out the moment of inertia of this object.

K+P=K+P

K=0.5I*w^2

## The Attempt at a Solution

==> 2mgL=(1/2)I*w^2 +(1/2)mgL

and from this equation w can be easily found. However, i canot seem to get the correct Rotational Inertia. Can anyone show me how to find the moment of inertia for this system??