Explanation Given information: The applied force function for the spring is F ( x ) = 20 3 x . The applied force is said to be progressive if F ' ( x ) increases a x increases and is degressive if F ' ( x ) decreases a x increases. Formula used: The work done in compressing or decompressing a spring from an initial position a to final position b , when the applied force is F ( x ) , is given by the formula: Work done = ∫ a b F ( x ) d x Calculation: Consider that the applied force is F ( x ) = 20 3 x . Compute the first derivative of the function F ( x ) with respect to x as given below, F ( x ) = 20 3 x d d x ( F ( x ) ) = d d x ( 20 3 x ) F ' ( x ) = 20 3 × d d x ( x ) = 20 3 × ( 1 2 ⋅ x 1 2 − 1 ) { ∵

4th Edition

ISBN: 9781319379421

Author: Rogawski

Publisher: MAC HIGHER

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Chapter 6.5, Problem 9E

To determine

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The work done in stretching the spring from 6 to 12 cm and also determine whether the force is progressive of degressive.

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Chapter 6.5, Problem 8E

Chapter 6.5, Problem 10E

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Chapter 6 Solutions

CALCULUS 4E (HC) W/ ACHIEVE ACCESS

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Tocalculate: The work done in stretching the spring from 6 to 12 cm and also determine whether the force is progressive of degressive.

Solution Summary: The author calculates the applied force function for the spring from 6 to 12 cm and determines whether the force is progressive or degressive.