newtons 3rd law

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Across
  1. 2. a planet/gravitational pull
  2. 3. Any influence that tends to accelerate on an object,a push or a pull.
  3. 7. The force that is equal in strength and opposite in direction to the action force, which acts simultaneously on whatever is exerting the action force.
  4. 8. The rate at which velocity is changing.
  5. 10. One of the pair of objects described in Newton's third law.
  6. 11. movement
  7. 12. the property of an object that resists changes in its motion.
  8. 13. The amount of matter in an object.
Down
  1. 1. A mutual action between objects where each object exerts and equal but opposite force on the other.
  2. 4. the speed of something in a given direction.
  3. 5. the quantity of motion of a moving body, measured as a product of its mass and velocity.
  4. 6. Whenever one body exerts a force on a second body,second body exerts an equal and opposite force on the first.
  5. 9. The force on a object due to gravitational attraction of