Which of the following is/are true regarding an elastic collision in an isolated
system of particles?
a) The total momentum after the collision equals the total momentum before the collision.
b) The magnitude of the total momentum after the collision is greater than the magnitude of
the total momentum before the collision.
c) The magnitude of the total momentum after the collision is less than the magnitude of
the total momentum before the collision.
d)The total kinetic energy after the collision equals the total kinetic energy before the
collision.
e) The total kinetic energy after the collision is greater than the total kinetic energy before
the collision.
f) The total kinetic energy after the collision is less than the total kinetic energy before the
collision.
g) NONE of the other choices are true.
