- #1

- 3

- 0

So, it's straight forward enough to calculate the moment of inertia of basic planes with evenly distributed mass, but if I were to say glue the red and green plane together, how would I find the moment of inertia of the blue shape?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- B
- Thread starter Hayden Leete
- Start date

- #1

- 3

- 0

So, it's straight forward enough to calculate the moment of inertia of basic planes with evenly distributed mass, but if I were to say glue the red and green plane together, how would I find the moment of inertia of the blue shape?

- #2

Doc Al

Mentor

- 45,051

- 1,364

About what axis?how would I find the moment of inertia of the blue shape?

You can find the moment of inertia of each piece about the axis of choice, then just add them. (You'll need the parallel axis theorem.)

- #3

- 3

- 0

About what axis?

You can find the moment of inertia of each piece about the axis of choice, then just add them. (You'll need the parallel axis theorem.)

probably should have specified, the z axis, or the axis perpendicular to the plane. the axis of choice is the blue COM, and I dont know how to find the moment of inertia of each shape except with central axes (I dont know much in the world of rotational inertia)

- #4

- 3

- 0

Share:

- Replies
- 2

- Views
- 3K