newton's laws of motion(some words have different characters)

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Across
  1. 6. a tendency to do nothing or to remain unchanged.
  2. 8. the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second, and is equivalent to 100,000 dynes.
  3. 9. vehicle's capacity to gain speed within a short time.
  4. 10. two forces acting in opposite directions on an object, and equal in size.
Down
  1. 1. person pushes against current of water, person moves forward
  2. 2. strength or energy as an attribute of physical action or movement.
  3. 3. newton's second law
  4. 4. the vector sum of forces acting on a particle or body
  5. 5. two forces acting upon each other in opposite directions at different forces
  6. 7. the resistance that one surface or object encounters when moving over another.