### Problem StatementThe arm in the figure below weighs **39.8 N**. The force of gravity acting on the arm acts through point **A**. Determine the magnitudes of the tension force (\(\vec{F_t}\)) in the deltoid muscle and the force (\(\vec{F_s}\)) exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. (Enter your answers to at least the nearest newton.)\[\begin{align*}F_t &= \_\_\_\_\_ \text{ N} \\F_s &= \_\_\_\_\_ \text{ N} \\\end{align*}\]### Diagram ExplanationThe diagram shows an upper arm extended horizontally. The following forces and measurements are indicated:- \(\vec{F_t}\): Tension force in the deltoid muscle, represented by an arrow pointing at an angle to the arm.- \(\vec{F_s}\): Force exerted by the shoulder on the humerus, represented by an arrow pointing from the shoulder to the humerus.- \(\vec{F_g}\): Force of gravity acting downward through point \(A\).- The distances and angles in the diagram are: - A horizontal distance from the shoulder to point \(A\) of **0.290 m**. - A shorter horizontal distance from the shoulder vertically below where \(\vec{F_t}\) acts of **0.080 m**. - An angle \(\theta\) of **12°** between the horizontal arm and \(\vec{F_t}\).### Additional AssistanceFor more detailed help on this topic, you can click the **"Read It"** button to access further explanations and resources.---#### Need Help?If you find this problem challenging, please do not hesitate to click the **"Need Help? Read It"** link for additional guidance and explanations.

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The arm in the figure below weighs 39.8 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force F, in the deltoid muscle and the force F exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. (Enter your answers to at least the nearest newton.) Ft = Fs = N 0.080 m Need Help? Read It -0.290 m-

The arm in the figure below weighs 39.8 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force F, in the deltoid muscle and the force F exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. (Enter your answers to at least the nearest newton.) Ft = Fs = N 0.080 m Need Help? Read It -0.290 m-

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

### Problem Statement

The arm in the figure below weighs **39.8 N**. The force of gravity acting on the arm acts through point **A**. Determine the magnitudes of the tension force (\(\vec{F_t}\)) in the deltoid muscle and the force (\(\vec{F_s}\)) exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. (Enter your answers to at least the nearest newton.)

\[
\begin{align*}
F_t &= \_\_\_\_\_ \text{ N} \\
F_s &= \_\_\_\_\_ \text{ N} \\
\end{align*}
\]

### Diagram Explanation

The diagram shows an upper arm extended horizontally. The following forces and measurements are indicated:

- \(\vec{F_t}\): Tension force in the deltoid muscle, represented by an arrow pointing at an angle to the arm.
- \(\vec{F_s}\): Force exerted by the shoulder on the humerus, represented by an arrow pointing from the shoulder to the humerus.
- \(\vec{F_g}\): Force of gravity acting downward through point \(A\).
- The distances and angles in the diagram are:
- A horizontal distance from the shoulder to point \(A\) of **0.290 m**.
- A shorter horizontal distance from the shoulder vertically below where \(\vec{F_t}\) acts of **0.080 m**.
- An angle \(\theta\) of **12°** between the horizontal arm and \(\vec{F_t}\).

### Additional Assistance

For more detailed help on this topic, you can click the **"Read It"** button to access further explanations and resources.

---

#### Need Help?

If you find this problem challenging, please do not hesitate to click the **"Need Help? Read It"** link for additional guidance and explanations.

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