A 30-Kg Block Is Dragged Over a Rough Horizontal Surface by by a Constant

question 46

Multiple Choice

A 3.0-kg block is dragged over a rough horizontal surface by a constant force of 16 N acting at an angle of 37 $\degree$ above the horizontal as shown.The speed of the block increases from 4.0 m/s to 6.0 m/s in a displacement of 5.0 m.What work was done by the friction force during this displacement?

• A)-34 J
• B)-64 J
• C)-30 J
• D)-94 J
• E)+64 J

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Definitions:

Meaningful Work

Work that is perceived to have significance or purpose, leading to feelings of fulfillment and satisfaction in individuals.

Unilateral Fashion

Acting or making decisions independently and without consultation or agreement with others.

Team Members

Individuals who are part of a group working together to achieve common goals, each contributing their skills, knowledge, and effort.

Serving Others

An act or series of actions done for the benefit of other people, often highlighting selflessness and empathy.