A 6-Kg Object Is Moving to the Right at 4

question 28

Multiple Choice

A 6-kg object is moving to the right at 4 m/s and collides with a 4-kg object moving to the left at 6 m/s.The objects collide and stick together.After the collision,the combined object:

• A) has the same kinetic energy that the system had before the collision.
• B) has more kinetic energy than the system had before the collision.
• C) has no kinetic energy.
• D) has less momentum than the system had before the collision.

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Definitions:

Marginal Benefit

The supplementary enjoyment or advantage derived from consuming an extra unit of a good or service.

Marginal Cost

The amount of money needed to manufacture an extra unit of a good or service.

Diagram

A simplified drawing or plan that represents the essential features of something, often used for explanation or clarification.

Coase Theorem

A principle that asserts if trade in an externality is possible and there are no transaction costs, parties can negotiate to solve the problem privately.