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Verify that the force in the elbow joint in Example 9.4 is

Chapter 9, Problem 26

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QUESTION:

Verify that the force in the elbow joint in Example \(9.4\) is \(407 N\), as stated in the text.

Equation Transcription:

Text Transcription:

9.4

407 N

Questions & Answers

QUESTION:

Verify that the force in the elbow joint in Example \(9.4\) is \(407 N\), as stated in the text.

Equation Transcription:

Text Transcription:

9.4

407 N

ANSWER:

Solution

Step 1 of Step 3

In this there are four forces acting on the forearm that are, FB is the magnetic force of the biceps, FE is the triceps and wa is the forearm weight. If the first condition that is FB and the second condition is FE we change the pivot to be at the elbow. Since FE is zero due to torque and FB is unknown. The free body diagram of this problem is given below.

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