Velocity vs. Time for a Cart
20
15
10
5
Velocity (m/s)
0
-5
-10
-15
-20
0 1 2 3 4 5 6 7
Time (s)
What is the magnitude of the change in the momentum of the cart from t=0 to
t=3 seconds?
A. 20 N-S
B. 30 N-s
C. 60 N-S
D. 80 N-S