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Homework Problems
1. The figure shows vectors A and B. Graphically calculate the following:
A+B, A–B, B–A, –2B, A–2B
No numbers are involved.
2. Phnom Penh is 470 km east and 250 km south of Bangkok. Hanoi is
60 km east and 1030 km north of Phnom Penh. (a) Choose a coordinate
system, and translate these data into
.
x and
.
y values with the proper plus
and minus signs. (b) Find the components of the
.
r vector pointing
from Bangkok to Hanoi.
3 . If you walk 35 km at an angle 25
°
counterclockwise from east, and
then 22 km at 230
°
counterclockwise from east, find the distance and
direction from your starting point to your destination.
A
B
Problem 1.
SA solution is given in the back of the book.A difficult problem.
A computerized answer check is available.
.
A problem that requires calculus.
Chapter 7Vectors