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

question 27

Multiple Choice

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

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Definitions:

ATC

Average Total Cost, the total cost of production divided by the quantity of output produced, encompassing both fixed and variable costs.

MC

Short for Marginal Cost, it refers to the change in total cost that arises when the quantity produced is incremented by one unit.

MR

Marginal Revenue, the additional income that is gained from selling one more unit of a good or service.

Purely Competitive Seller

A seller operating in a market where there are many buyers and sellers, no barriers to entry, and products are homogenous, leading to perfect competition.