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# that the force in the elbow joint in Example 9.4 is 407 N, ISBN: 9780130606204 3

## Solution for problem 26PE Chapter 9

Physics: Principles with Applications | 6th Edition

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Problem 26PE

that the force in the elbow joint in Example 9.4 is 407 N, as stated in the text. 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 26PE Step-by-step solution Step 1 of 2 Refer to the figure 9.27(a) provided in the text book. Consider the force of the biceps muscle must exert to hold the forearm and its load as shown in figure. Torque about pivot point is zero , Here, is weight of forearm, is distance between force exerted by biceps and force at elbow, is distance between force exerted by elbow and weight of forearms, is load, is distance between load and force at elbow joint and is force at elbow joint. Calculate weight of forearm, Here, is mass of forearm and g is acceleration due to gravity. Substitute 2.5 kg for m and 9.8 m/s2 for g calculate weight of forearm, Calculate load, Substitute 4.0 kg for m and 9.8 m/s2 for g calculate load,

Step 2 of 2

##### ISBN: 9780130606204

The answer to “that the force in the elbow joint in Example 9.4 is 407 N, as stated in the text. 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 76 words. This full solution covers the following key subjects: Force, forearm, its, load, Example. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. The full step-by-step solution to problem: 26PE from chapter: 9 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. Since the solution to 26PE from 9 chapter was answered, more than 278 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6.

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