Explanation Given: The object located at origin is held in equilibrium by four forces acting on it. The magnitude of the first force is 7 lb and it points in the direction of the positive x - axis. The magnitude of the second force is 24 lb and it points in the direction of the positive y - axis. The magnitude of the first force is 25 lb and it points in the direction of the negative z - axis. Approach: The sum of all forces in equilibrium is zero that is, F 1 + F 2 + ... + F n = 0 … ( 1 ) Here, F 1 , F 2 , …, F n are the forces acting on the object in equilibrium. Calculation: Suppose F 1 , F 2 , F 3 , F 4 are the four forces acting on the object kept in equilibrium. F 1 = 7 i Here, F 1 is the first force acting on the object in the direction of the positive x - axis. F 2 = 24 j Here, F 2 is the second force acting on the object in the direction of the positive y - axis. F 3 = − 25 k Here, F 3 is the force acting on the object in the direction of the negative z - axis To determine (b) To find: The magnitude of the fourth force.

4th Edition

ISBN: 8220100548512

Author: Watson

Publisher: CENGAGE L

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Chapter 9.4, Problem 49E

To determine

(a)

To find:

The fourth force acting on the object in terms of i, j, and k.

To determine

(b)

To find:

The magnitude of the fourth force.

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Chapter 9.4, Problem 48E

Chapter 9.4, Problem 50E

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2. Vector Addition and Vector Components: Vector A is 2.80 cm long and is 60° above the x-axis in the first quadrant. Vector B is 1.90 cm long and is 60° below the x-axis in the fourth quadrant. Use components to find the magnitude and direction of (a) Ā + B; (b) Ā -B (c) B+ A. In each case, (d) sketch the vector addition or subtraction and show that your numerical answers are in qualitative agreement with your sketch.

Chapter 9 Solutions

EBK ALGEBRA AND TRIGONOMETRY

Ch. 9.1 - Prob. 1E Ch. 9.1 - CONCEPTS 2. a The length of a vector w=a1,a2 is...Ch. 9.1 - 38 Sketching Vectors Sketch the vector indicated....Ch. 9.1 - Prob. 4E Ch. 9.1 - Prob. 5E Ch. 9.1 - Prob. 6E Ch. 9.1 - SKILLS 3-8 Sketching Vectors Sketch the vector...Ch. 9.1 - Prob. 8E Ch. 9.1 - Prob. 9E Ch. 9.1 - Prob. 10E

Ch. 9.1 - Prob. 11E Ch. 9.1 - Prob. 12E Ch. 9.1 - Prob. 13E Ch. 9.1 - Prob. 14E Ch. 9.1 - Prob. 15E Ch. 9.1 - Prob. 16E Ch. 9.1 - Prob. 17E Ch. 9.1 - Prob. 18E Ch. 9.1 - Prob. 19E Ch. 9.1 - 19-22Sketching VectorsSketch the given vector with...Ch. 9.1 - Prob. 21E Ch. 9.1 - Prob. 22E Ch. 9.1 - Prob. 23E Ch. 9.1 - Prob. 24E Ch. 9.1 - Prob. 25E Ch. 9.1 - Prob. 26E Ch. 9.1 - Prob. 27E Ch. 9.1 - 27-30Writing Vectors in terms of i and jWrite the...Ch. 9.1 - Prob. 29E Ch. 9.1 - Prob. 30E Ch. 9.1 - Prob. 31E Ch. 9.1 - 31-36 Operations with vectors Find 2u, 3v, u+v,...Ch. 9.1 - Prob. 33E Ch. 9.1 - Prob. 34E Ch. 9.1 - Prob. 35E Ch. 9.1 - Prob. 36E Ch. 9.1 - Prob. 37E Ch. 9.1 - Prob. 38E Ch. 9.1 - Prob. 39E Ch. 9.1 - Prob. 40E Ch. 9.1 - Prob. 41E Ch. 9.1 - Prob. 42E Ch. 9.1 - Prob. 43E Ch. 9.1 - Prob. 44E Ch. 9.1 - Prob. 45E Ch. 9.1 - Prob. 46E Ch. 9.1 - Prob. 47E Ch. 9.1 - Prob. 48E Ch. 9.1 - Prob. 49E Ch. 9.1 - Prob. 50E Ch. 9.1 - Prob. 51E Ch. 9.1 - Prob. 52E Ch. 9.1 - Prob. 53E Ch. 9.1 - Components of a VelocityA jet is flying in a...Ch. 9.1 - Prob. 55E Ch. 9.1 - VelocitySuppose that in Exercise 55 the current is...Ch. 9.1 - VelocityThe speed of an airplane is 300 mi/h...Ch. 9.1 - Prob. 58E Ch. 9.1 - Prob. 59E Ch. 9.1 - Prob. 60E Ch. 9.1 - True Velocity of a JetFind the true speed and...Ch. 9.1 - Prob. 62E Ch. 9.1 - Prob. 63E Ch. 9.1 - Velocity of a Boat The boater in Exercise 63 wants...Ch. 9.1 - Prob. 65E Ch. 9.1 - Prob. 66E Ch. 9.1 - Prob. 67E Ch. 9.1 - Prob. 68E Ch. 9.1 - Prob. 69E Ch. 9.1 - Prob. 70E Ch. 9.1 - Prob. 71E Ch. 9.1 - Prob. 72E Ch. 9.1 - Prob. 73E Ch. 9.1 - Equilibrium of Tensions The cranes in the figure...Ch. 9.1 - Prob. 75E Ch. 9.2 - Prob. 1E Ch. 9.2 - Prob. 2E Ch. 9.2 - Prob. 3E Ch. 9.2 - Prob. 4E Ch. 9.2 - Prob. 5E Ch. 9.2 - Prob. 6E Ch. 9.2 - Prob. 7E Ch. 9.2 - Prob. 8E Ch. 9.2 - Prob. 9E Ch. 9.2 - Prob. 10E Ch. 9.2 - Prob. 11E Ch. 9.2 - Prob. 12E Ch. 9.2 - Prob. 13E Ch. 9.2 - Prob. 14E Ch. 9.2 - Prob. 15E Ch. 9.2 - Prob. 16E Ch. 9.2 - Prob. 17E Ch. 9.2 - Prob. 18E Ch. 9.2 - Prob. 19E Ch. 9.2 - Prob. 20E Ch. 9.2 - 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