A 5-Kg Box Is Pushed 5 M Up a Plane

question 3

Multiple Choice

A 5-kg box is pushed 5 m up a plane that is inclined at 30º with the horizontal.The coefficient of kinetic friction between the box and the plane is 0.20.The change in potential energy of the box is approximately

• A)12.5 J
• B)34.2 J
• C)123 J
• D)345 J
• E)403 J

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Definitions:

Consideration

In contract law, consideration refers to something of value, which can be an object, service, money, or promise, exchanged between parties as the basis for a contract.

Bilateral Contract

An agreement between two parties in which each party commits to performing a specific obligation.

Consideration

In a contractual agreement, it is the value or promise that each party agrees to exchange.

Promissory Estoppel

A legal principle that enables a party to recover on a promise made when they have reasonably relied on that promise to their detriment, even if a formal contract does not exist.