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Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 7 - Problem 56pe
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 7 - Problem 56pe

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# swimmer shown in Figure 7.44 exerts an average horizontal

ISBN: 9780130606204 3

## Solution for problem 56PE Chapter 7

Physics: Principles with Applications | 6th Edition

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Problem 56PE

swimmer shown in Figure 7.44 exerts an average horizontal backward force of 80.0 N with his arm during each 1.80 m long stroke. (a) What is his work output in each stroke? (b) Calculate the power output of his arms if he does 120 strokes per minute.

Step-by-Step Solution:

Step-by-step solution Step 1 of 4 The formula to find the work is, Here is the work done, is the force and is the displacement in the direction of applied force. (a) The output work by a swimmer in each stroke who exerts an average horizontal backward force each stroke is Therefore, the output work by the swimmer in each stroke is .

Step 2 of 4

Step 3 of 4

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swimmer shown in Figure 7.44 exerts an average horizontal