Explanation Given data: Consider the initial speed of the person ( v 1 ) as v . Consider the initial drag force ( F 1 ) as F . The final speed of the person ( v 2 ) is doubled with respect to the initial speed. That is, the final speed of the person is 2 v . The final drag force is increased by a factor of 4. That is, the final drag force ( F 2 ) is 4 F . It is required to find the factor at which the power is increased due to the increased speed and drag force. Formula used: Refer to the equation (10.25) in the textbook, and write the expression for the power as follows. P = F v (1) Here, F is the drag force, and v is the velocity (speed) of the person. Explanation: Modify the expression in equation (1) for the initial power (power with the original speed and drag force) as follows

College Physics: A Strategic Approach Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition) (What's New in Astronomy & Physics)

4th Edition

ISBN: 9780134641492

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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Chapter 10, Problem 31MCQ

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Chapter 10, Problem 30MCQ

Chapter 10, Problem 1P

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College Physics: A Strategic Approach Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition) (What's New in Astronomy & Physics)

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