A Student Slides Her 80

question 5

Multiple Choice

A student slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed.If the coefficient of kinetic friction between the desk and the floor is 0.400,how much work did she do?

• A) 128 J
• B) 3.14 kJ
• C) 26.7 J
• D) 1.26 kJ
• E) 24.0 J

---

Definitions:

Pertussis

Also known as whooping cough, a highly contagious bacterial disease causing severe coughing fits and difficulty breathing.

Upper Frequencies

The higher range of frequencies or pitches, often associated with sounds or signals.

Lower Frequencies

Refers to the part of the spectrum that includes waves with relatively long wavelengths and, correspondingly, lower energy levels.

Sudden

Occurring or done quickly and unexpectedly or without warning.