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Two muscles in the back of the leg pull upward on the

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs ISBN: 9781938168000 42

Solution for problem 41PE Chapter 4

College Physics | 1st Edition

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College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

College Physics | 1st Edition

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Problem 41PE

Two muscles in the back of the leg pull upward on the Achilles tendon, as shown in Figure 4.40. (These muscles are called the medial and lateral heads of the gastrocnemius muscle.) Find the magnitude and direction of the total force on the Achilles tendon. What type of movement could be caused by this force?

Step-by-Step Solution:

Solution 41PE

Step 1 of 4</p>

In the given problem, we need to calculate the magnitude and direction of the net force that is acting on the Achilles tendon. Also, we need to determine which type of movement it could cause by the calculated force.

Two muscles which are at the back of the leg, pull upward on the achilles tendon at angle of with the force as shown in the figure below,

Step 2 of 4</p>

We can calculate the net resultant force acting on the Achilles tendon by resolving the given forces on muscles into vertical and horizontal components.

Resolving the given forces into its horizontal components

The horizontal component of the force will be balanced, hence the net horizontal force will be zero as shown in the figure below.

 

Step 3 of 4

Chapter 4, Problem 41PE is Solved
Step 4 of 4

Textbook: College Physics
Edition: 1
Author: Paul Peter Urone, Roger Hinrichs
ISBN: 9781938168000

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