- #1

- 19

- 0

Please help! I really need this one!

- Thread starter rlmurra2
- Start date

- #1

- 19

- 0

Please help! I really need this one!

- #2

OlderDan

Science Advisor

Homework Helper

- 3,021

- 2

You should show us your attempt to solve this problem, then ask for helprlmurra2 said:

Please help! I really need this one!

https://www.physicsforums.com/showthread.php?t=4825

In case you have no idea where to get started, you need to calculate the moment of inertia of a rod pivoting at one end. You might find that by looking it up, or by using the parallel axis theorem after looking up the moment of inertia of a rod rotating about its center. Then you will need to calculate the torque acting on the rod about the pivot point. This torque comes from the force of gravity acting at the center of the rod. Then you will use "Newton's second law for rotation" to find the angular acceleration as the ratio of the torque to the moment of inertia.

- #3

Astronuc

Staff Emeritus

Science Advisor

- 18,896

- 2,191

- Last Post

- Replies
- 0

- Views
- 1K

- Last Post

- Replies
- 1

- Views
- 2K

- Last Post

- Replies
- 9

- Views
- 7K

- Last Post

- Replies
- 6

- Views
- 2K

- Last Post

- Replies
- 4

- Views
- 1K

- Last Post

- Replies
- 5

- Views
- 10K

- Last Post

- Replies
- 1

- Views
- 2K

- Last Post

- Replies
- 1

- Views
- 2K

- Replies
- 5

- Views
- 2K

- Last Post

- Replies
- 5

- Views
- 947