A 22-Kg Block Starts from Rest on a Rough Inclined Plane

question 15

Multiple Choice

A 2.2-kg block starts from rest on a rough inclined plane that makes an angle of 25° with the horizontal.The coefficient of kinetic friction is 0.25.As the block goes 2.0 m down the plane, the mechanical energy of the Earth-block system changes by:

• A)0 J
• B)-9.8 J
• C)9.8 J
• D)-18 J
• E)18 J

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Definitions:

Verbal

Relating to words or the use of speech in communication as opposed to non-verbal forms like gestures or facial expressions.

Written

Refers to the expression of language in a textual medium, through the use of characters or symbols.

Non-audible Communication

Communication that occurs through means other than spoken words, such as body language, facial expressions, or written texts.

Facial Expressions

The movements of the facial muscles that convey emotional states, intentions, or social information to others.