A 2-kg cart, traveling on a horizontal air track with a speed of 3 m/s, collides with a stationary 4-kg cart. The carts stick together. The impulse exerted by one cart on the other has a magnitude of:
A) 0
B) 4 N ∙ s
C) 6 N ∙ s
D) 9 N ∙ s
E) 12 N ∙ s

Question

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The Answer of A 2-kg cart, traveling on a horizontal air track with a speed of 3 m/s, collides with a stationary 4-kg cart. The carts stick together. The impulse exerted by one cart on the other has a magnitude of:
A) 0
B) 4 N ∙ s
C) 6 N ∙ s
D) 9 N ∙ s
E) 12 N ∙ s

A 2-Kg Cart, Traveling on a Horizontal Air Track with a Speed