University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
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Textbook Question
Chapter 2, Problem 80AP
A stubborn dog is being walked on a leash by its owner. At one point, the dog encounters an interesting scent at some spot on the ground and wants to explore It in detail, but the owner gets impatient and pulls on the leash with force along the leash. (a) What is the magnitude of the pulling force? (b) What angle does the leash make with the vertical?
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In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the
picture. The tire remains stationary in spite of the three pulls. Alex pulls with force of magnitude 210 N, and Charles pulls
with force of magnitude 185 N. Note that the direction of Fc is not given. What is the magnitude of Betty's force FB if
Charles pulls in (a) the direction drawn in the picture or (b) the other possible direction for equilibrium?
147°
Alex
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(a) Number i
(b) Number i
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In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture.
The tire remains stationary in spite of the three pulls. Alex pulls with force F A of magnitude 200 N, and Charles pulls with force
É c of magnitude 175 N. Note that the direction of F c is not given. What is the magnitude of Betty's force F B if Charles pulls
in (a) the direction drawn in the picture or (b) the other possible direction for equilibrium?
Alex
Charles
131°
Betty
(a) Number
i
Units
(b) Number
i
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A stubborn dog is being walked on a leash by its owner. At one point, the dog encounters an interesting scent at some spot on the ground and wants to explore it in detail, but the owner gets impatient and pulls on the leash with force F ⃗ = (98.0i ^ + 132.0j ^ + 32.0k ^ )N along the leash. (a) What is the magnitude of the pulling force? (b) What angle does the leash make with the vertical?
Chapter 2 Solutions
University Physics Volume 1
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