What can investigators use the law of conservation of momentum to ...

[javeds]

What can investigators use the law of conservation of momentum to determine from the details at the scene of a car accident?
 a. Which, if any, of the two cars were motionless when it was hit.
  b. Whether or not the driver was drunk.
  c. Which direction the hit-and-run driver went off in.
  d. Whether either of the cars was over the speed limit.
  e. How many people were in each car.

Question 2

If a moving object hits a still object, what happens to the momentum of the moving object?
 a. The momentum of the moving object is increased by the force of the collision.
  b. The momentum of the moving object goes to zero at the moment of collision.
  c. The two stick together and move at the same speed afterward.
  d. The momentum of the moving object is decreased by the amount of momentum the stationary object picks up at the time of the collision.
  e. The momentum of the moving object matches the momentum of the stationary object.

[lgoldst9]

Answer to Question 1

d

Answer to Question 2

d

[javeds]

Thank you!

[lgoldst9]

Always glad to help...