P 3.12 A figure skater glides along a circular path of radius 5.00 m. If she coasts around one half of the circle, find (a) the magnitude of the displacement vector and(b) what distance she skated. (c) What is the magnitude of the displacement if she skates all the way around the circle? P 3.14 A hiker starts at his camp and moves the follow-ing distances while exploring his surroundings: 75.0 m north, 2.50 x 10- m east, 125 m at an angle 30.0° north of east, and 1.50 x 10 m south. (a) Find his resultant displacement from camp. (Take east as the positive x-direction and north as the positive y- direction.) (b) Would changes in the order in which the hiker makes the given displacements alter his final position? Explain. P 3.19 A commuter airplane starts from an airport and takes the route shown in the following figure. The plane first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north, to city B. Finally, the plane flies 190 km due west, to city C. Find the location of city C relative to the location of the starting point. y (km) 250 N B C w-p +E 200 20.00 Z<

P 3.12 A figure skater glides along a circular path of radius 5.00 m. If she coasts around one half of the circle, find (a) the magnitude of the displacement vector and(b) what distance she skated. (c) What is the magnitude of the displacement if she skates all the way around the circle? P 3.14 A hiker starts at his camp and moves the follow-ing distances while exploring his surroundings: 75.0 m north, 2.50 x 10- m east, 125 m at an angle 30.0° north of east, and 1.50 x 10 m south. (a) Find his resultant displacement from camp. (Take east as the positive x-direction and north as the positive y- direction.) (b) Would changes in the order in which the hiker makes the given displacements alter his final position? Explain. P 3.19 A commuter airplane starts from an airport and takes the route shown in the following figure. The plane first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north, to city B. Finally, the plane flies 190 km due west, to city C. Find the location of city C relative to the location of the starting point. y (km) 250 N B C w-p +E 200 20.00 Z<

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

Im confused on P 3.14.

P 3.12
A figure skater glides along a circular path of radius 5.00 m. If she coasts around one half of the circle,
find (a) the magnitude of the displacement vector and(b) what distance she skated. (c) What is the
magnitude of the displacement if she skates all the way around the circle?
P 3.14
A hiker starts at his camp and moves the follow-ing distances while exploring his surroundings: 75.0 m
north, 2.50 x 10- m east, 125 m at an angle 30.0° north of east, and 1.50 x 10 m south. (a) Find his
resultant displacement from camp. (Take east as the positive x-direction and north as the positive y-
direction.) (b) Would changes in the order in which the hiker makes the given displacements alter his final
position? Explain.
P 3.19
A commuter airplane starts from an airport and takes the route shown in the following figure. The plane
first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0°
west of north, to city B. Finally, the plane flies 190 km due west, to city C. Find the location of city C
relative to the location of the starting point.
y (km)
250
N
B
C
w-p
+E
200
20.00
Z<

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