Across
- 6. picking up speed
- 7. opposite direction, unequal in size
- 8. sum of all the forces
- 10. response to a situation or event
- 11. process of doing something
Down
- 1. remain unchanged
- 2. rubbing of one thing against another
- 3. push or pull
- 4. unit used to measure force
- 5. opposite direction, equal in size
- 9. formula