Across
- 2. pulling on something
- 4. vertical takeoff of a rocket
- 6. speed of a thing against another thing
- 8. air or water moving violently
- 10. Robert H. Goddard: invented the bottle rocket
- 11. of pressure: the point in the chordthat is at the intersection of the chord and the line of action of the resultant air force.
- 12. cylindrical projectile that goes high
- 13. von Braun: he invented rockets
Down
- 1. taking place along constant streamline
- 3. chemical substance used in the production of energy
- 5. impulse: a measure of the maximum momentum
- 7. third law of motion: Every action has a reaction
- 8. a small engine on an aircraft
- 9. push suddenly in a direction.