Two Air Track Carts Move Along an Air Track Towards

Multiple Choice

Two air track carts move along an air track towards each other.Cart A has a mass of 450 g and moves toward the right with a speed of 0.850 m/s.Cart B has a mass of 300 g and moves toward the left with a speed of 1.12 m/s.What is the total momentum of the two-cart system?

A) 0.047 kg ∙ m/s toward the right
B) 0.719 kg ∙ m/s toward the right
C) 0.719 kg ∙ m/s toward the left
D) 0.750 kg ∙ m/s toward the right
E) 0.750 kg ∙ m/s toward the left