College Physics
OER 2016 Edition
ISBN: 9781947172173
Author: OpenStax
Publisher: OpenStax College
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Chapter 3, Problem 23PE
In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, and he is blown along the following straight lines: 2.50 km 45.0° north of west; then 4.70 km 60.0° south of east; then 1.30 km 25.0° south of west; then 5.10 km straight east; then 1.70 km 5.00° east of north; then 7.20 km 55.0° south of west; and finally 2.80 km 10.0° north of east. What is his final position relative to the island?
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In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during
the day, and he is blown along the following straight lines:
2.50 km 45.0° north of west;
then 4.20 km 60.0° south of east;
then 1.50 km 25.0° south of west;
then 5.30 km straight east;
then 1.90 km 5.00° east of north;
then 7.20 km 55.0° south of west;
and finally 2.90 km 10.0° north of east.
What is his final position relative to the island? (i.e., find the magnitude and direction of the
displacement.)
km at
degrees South of East
In an attempt to escape a desert island, a castaway builds a raft and sets out to sea. The wind shifts a great deal during the day, and she is blown along the following straight lines: 2.50 km and 45.0° north of west, then 4.70 km and 60.0° south of east, then 1.30 km and 25.0° south of west, then 5.10 km due east, then 1.70 km and 5.00° east of north, then 7.20 km and 55.0° south of west, and finally 2.80 km and 10.0° north of east. Use the analytical method to find the resultant vector of all her displacement vectors. What is its magnitude and direction?
The magnitude of A is 5.5. Vector A lies in the second quadrant and forms an angle of
34 degrees with the y-axis. The components, A, and A,, are closest to:
O Ą=-3.1, A₂= +4.6
O A₂ = +3.1, A₂ = -4.6
QAx +4.6, Ay = -3.1
O Ą= 4.6, A, - -3.1
O A = 4.6, A, - +3.1
Chapter 3 Solutions
College Physics
Ch. 3 - Which of the following is a vector: a person's...Ch. 3 - Give a specific example of a vector, stating its...Ch. 3 - What do vectors and scalars have in common? How do...Ch. 3 - Two calipers in a national park hike from their...Ch. 3 - If an airplane plot is told to fly 123 km in a...Ch. 3 - Suppose you take two steps A and B (that is, two...Ch. 3 - Explain why it is not possible to add a scalar to...Ch. 3 - If you take two steps of different sizes, can you...Ch. 3 - Suppose you add two vectors A and B. What relative...Ch. 3 - Give an example of a nonzero vector that has a...
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