Precalculus Enhanced with Graphing Utilities (7th Edition)

7th Edition

ISBN: 9780134119281

Author: Michael Sullivan, Michael Sullivan III

Publisher: PEARSON

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Textbook Question

Chapter 9.4, Problem 96AE

Removing a Slump A farmer wishes to remove a stump from a field by pulling it out with his tractor. Having removed many stumps before, he estimates that he will need 6 tons (12,000 pounds) of force to remove the stump. However, his tractor is only capable of pulling with a force of 7000 pounds, so he asks his neighbor to help. His neighborâ€™s tractor can pull with a force of 5500 pounds. They attach the two tractors to the stump with a $40^{\circ}$ angle between the forces, as shown in the figure.

(a) Assuming the farmer's estimate of a needed 6-ton force is correct, will the farmer be successful in removing the stump? Explain.

(b) Had the farmer arranged the tractors with a $25 °$ angle between the forces, would he have been successful in removing the stump? Explain.

Chapter 9.4, Problem 96AE, Removing a Slump A farmer wishes to remove a stump from a field by pulling it out with his tractor.

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Chapter 9.4, Problem 95AE

Chapter 9.4, Problem 97AE

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Chapter 9 Solutions

Precalculus Enhanced with Graphing Utilities (7th Edition)

Ch. 9.1 - Plot the point whose rectangular coordinates are (...Ch. 9.1 - To complete the square of x 2 +6x , add ______ .Ch. 9.1 - If P=( x,y ) is a point on the terminal side of...Ch. 9.1 - tan 1 ( 1 )= ______ .Ch. 9.1 - Prob. 5CV Ch. 9.1 - Prob. 6CV Ch. 9.1 - For the point with polar coordinates ( 1, 2 ) ,...Ch. 9.1 - The point ( 5, 6 ) can also be represented by...Ch. 9.1 - True or False In the polar coordinates ( r, ) , r...Ch. 9.1 - True or False The polar coordinates of a point are...

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Solution Summary: The author analyzes how a farmer estimates that he will need 6tons of force to remove the stump, but his neighbor's tractor can pull with 5500 pounds.

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