CWhitmore ch 2/4

4. the distance divided by time interval during which the motion occurred
7. for straight line ,otion accelation=final velocity-initial velocity/time. see above
8. the forces acting on an object that combine to produce a net force that is equal to zero
11. W=mg weight=mass X fee fall acceleration
14. for every action force, there is an equal and opposite reaction force
15. a quantity defined as the products of an objects mass and velocity (p=mXv)

1. the cause of an acceleration of change in the objects velocity
2. the forces acting on an object that combiner to produce a net non zero force
3. a quantity describing both seed and direction
5. (p=mv) momentum=mass X velocity
6. the motion of body when only the force of gravity acting on it
9. the change in the velocity divided by time interval in witch the change occurs
10. the force between two objects in contact that oppose the motion of ether object
12. the tendency of an object to remain at rest or in motion with a constant velocity
13. the force of attraction between two particles of mater due to their masses