A Block Slides on a Rough Horizontal Surface from Point

question 39

Multiple Choice

A block slides on a rough horizontal surface from point A to point B.A force (magnitude P = 2.0 N) acts on the block between A and B,as shown.Points A and B are 1.5 m apart.If the kinetic energies of the block at A and B are 5.0 J and 4.0 J,respectively,how much work is done on the block by the force of friction as the block moves from A to B?

• A)-3.3 J
• B)+1.3 J
• C)+3.3 J
• D)-1.3 J
• E)+4.6 J

---

Definitions:

Stacked Column Chart

A variant of the column chart that segments each column into multiple categories, representing parts of the whole.

Cross-hatching

An artistic technique used to create tonal or shading effects by drawing closely spaced parallel lines that may intersect with another set of parallel lines.

Columns

Structural elements in architecture that serve as support, or in writing, divisions of text in a page layout.

Clustered Bar Chart

A graphical representation where bars related to different categories are placed next to each other for comparison.