Stan argues that momentum cannot be conserved when a collision is ...

[plus1]

Stan argues that momentum cannot be conserved when a collision is not a head-on collision. Rachel insists it is conserved because each body receives an impulse of equal magnitude. Rachel is correct because
 a. each body exerts an equal and opposite force on the other during the collision.
  b. the forces act during equal time intervals.
  c. the law of conservation of momentum for an isolated system is a vector equation.
  d. of all of the above. e. of only (a) and (b) above.

Question 2

If you know the impulse that has acted on a body of mass m you can calculate
 a. its initial velocity.
  b. its final velocity.
  c. its final momentum.
  d. the change in its velocity.
  e. its acceleration during the impulse.

[Sammyo]

Answer to Question 1

D

Answer to Question 2

D