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Glencoe Physics: Principles and Problems, Student Edition

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 8STP

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A 0.5-kg object initially resting on a horizontal (frictionless) air track at x = 1 m is subject to two forces: F₁ is a constant force of magnitude
20 N directed vertically downward, while F2 acts along the x-axis and varies as shown in the figure below. The speed (in m/s) of the object
after it undergoes a displacement of 5 m along the positive x-direction is:
↑10
F(N) 5
0
-5
-10
LAF
3
45
6
10.0
8.9
107.7
108.9
7.7
The correct answer is: 7,7

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