Section 6.4 Worksheet:

Assigned problems: Exercises pp. 397-398, #2, 5, 8, 13, 15, 18, 23 (due Tuesday, 4/15).

1. We often use them interchangeably, but in what fundamental way do the units of kilograms and pounds differ?
2. How does the technical meaning of work differ from your informal conception of work?
3. Give an example of a situation in which the technical definition and your intuition about work coincide, and an example of a situation in which they don't.
4. In the equation found on page 395,

   

   why would I prefer to write

   

   What would my justification be?