Computer Intensive Physics 211

InfoMall Homework #5 -Printed only (10 points)

Spring, 1998

Due 1/29/98

IFHW5:

Using the InfoMall

Write a short essay, in two parts, and print it out to hand in on Thursday,
January 29^th, at the beginning of class:

Today you were studying the use of Newton's Second Law to find out about
invisible forces. Use the InfoMallto learn more about a special part of this topic,
dissipative forces. These forces have such names as friction, drag, resistive
forces, etc.
The textbooks included in the Troverepresent the views of more than 20
authors and about three different levels of textbooks. If we list them in terms of
increasing level of mathematics, they can be listed as below:
Conceptual Level Textbooks
Algebra-based Textbooks
Calculus-based Textbooks and Special Topics

• (a) (3 pts)Find information about dissipative forces in onetextbook in eachlevel
  listed above. Cut and paste into your word processor a portion from each selection.
  Give the exact citation for each selection.

• (b) (7 pts) Do a more complete discussion of
  ( i ) friction-give a definition of friction and describe how does it depends on the
  shape and/or the mass of the object, the area of surface contact between
  objects, speed or motion of the object, etc.
  (ii) drag - give a definition of drag and describe how does it depends upon the
  shape and/or the mass of the object, the area of surface contact between
  objects, speed or motion of the object, etc.