Position (m)
4-
3
2
0
1
2
3
4
Cart 1
Cart 2
-5
Time (s)
33. The graph above represents the position of two identical carts on a straight horizontal track as a function of
time. Which of the following statements about the magnitude of the momentum of the two-cart system's center
of mass, Pom, is true?
(A) Pcom
(B) Pcom
(C) Pcom
(D) Pcom
is constant from t=0s to t = 5 s.
is smaller after 1 = 2 s than it is before t = 2 s.
is larger after = 2 s than it is before t = 2 s.
increases at a constant rate from t=0s to 15 s.