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# We analyzed the biceps muscle example with the angle ISBN: 9780130606204 3

## Solution for problem 31PE Chapter 9

Physics: Principles with Applications | 6th Edition

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Problem 31PE

We analyzed the biceps muscle example with the angle between forearm and upper arm set at 90º. Using the same numbers as in Example 9.4, find the force exerted by the biceps muscle when the angle is 120º and the forearm is in a downward position. Example 9.4: Muscles Exert Bigger Forces Than You Might Think Calculate the force the biceps muscle must exert to hold the forearm and its load as shown in ?Figure 9.27?, and compare this force with the weight of the forearm plus its load. You may take the data in the figure to be accurate to three significant figures.

Step-by-Step Solution:

Solution 31PE Step-by-step solution Step 1 of 2 Refer to the figure 9.27 provided in the text book. From the free body diagram refer to the figure 9.27 (b) provided in the text book. Since example 9.4 angles between biceps and forearm is and here angle between biceps and forearm is , due to this position of line joining force is change like a inclined plane.

Step 2 of 2

##### ISBN: 9780130606204

The full step-by-step solution to problem: 31PE from chapter: 9 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. Since the solution to 31PE from 9 chapter was answered, more than 343 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. The answer to “We analyzed the biceps muscle example with the angle between forearm and upper arm set at 90º. Using the same numbers as in Example 9.4, find the force exerted by the biceps muscle when the angle is 120º and the forearm is in a downward position. Example 9.4: Muscles Exert Bigger Forces Than You Might Think Calculate the force the biceps muscle must exert to hold the forearm and its load as shown in ?Figure 9.27?, and compare this force with the weight of the forearm plus its load. You may take the data in the figure to be accurate to three significant figures.” is broken down into a number of easy to follow steps, and 104 words. This full solution covers the following key subjects: forearm, muscle, Force, biceps, Example. This expansive textbook survival guide covers 35 chapters, and 3914 solutions.

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