 |
| |||
| Newton first law | |||
| first law of motion; Galileo's law of inertia; Newton's first law | |||
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips