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3
CHAPTER OUTLINE
3.1
Coordinate Systems
3.2
Vector and Scalar
Quantities
3.3
Some Properties of Vectors
3.4
Components of a Vector
and Unit Vectors
Vectors
ANSWERS TO QUESTIONS
Q3.1
No. The sum of two vectors can only be zero if they are in
opposite directions and have the same magnitude. If you walk
10 meters north and then 6 meters south, you won’t end up
where you started.
Q3.2
No, the magnitude of the displacement is always less than or
equal to the distance traveled. If two displacements in the same
direction are added, then the magnitude of their sum will be
equal to the distance traveled. Two vectors in any other
orientation will give a displacement less than the distance
traveled. If you first walk 3 meters east, and then 4 meters
south, you will have walked a total distance of 7 meters, but
you will only be 5 meters from your starting point.
Q3.3
The largest possible magnitude of
RAB
=+
is 7 units, found when
A
and
B
point in the same
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .
 Fall '11
 Staff
 Physics

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