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The forearm in the figure(Figure 1) accelerates a 3.9 kg ball at 6.1 m/s? by means of the triceps muscle, as shown. Figure 1 of 1 31 cm Axis of rotation (at elbow) 2.5 cm Triceps muscle

The forearm in the figure(Figure 1) accelerates a 3.9 kg ball at 6.1 m/s? by means of the triceps muscle, as shown. Figure 1 of 1 31 cm Axis of rotation (at elbow) 2.5 cm Triceps muscle

College Physics
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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The forearm in the figure accelerates a 3.9 kg ball at 6.1 m/s² by means of the triceps muscle, as shown. **Figure Explanation:** The diagram illustrates the anatomy of a human forearm holding a ball. The ball is situated at the upper end of the forearm. Key features include: - **Ball Position**: Held in the hand. - **Forearm Length**: 31 cm from the elbow (axis of rotation) to the hand. - **Triceps Muscle**: Located towards the back of the arm, 2.5 cm from the axis of rotation at the elbow. The diagram emphasizes the role of the triceps muscle in exerting force to accelerate the ball.
Transcribed Image Text:The forearm in the figure accelerates a 3.9 kg ball at 6.1 m/s² by means of the triceps muscle, as shown. **Figure Explanation:** The diagram illustrates the anatomy of a human forearm holding a ball. The ball is situated at the upper end of the forearm. Key features include: - **Ball Position**: Held in the hand. - **Forearm Length**: 31 cm from the elbow (axis of rotation) to the hand. - **Triceps Muscle**: Located towards the back of the arm, 2.5 cm from the axis of rotation at the elbow. The diagram emphasizes the role of the triceps muscle in exerting force to accelerate the ball.
### Part A **Task:** Calculate the torque needed. Ignore the mass of the arm. **Instructions:** Express your answer using two significant figures. **Input Box:** - Symbol: \( \tau = \) - Unit: \( \text{m} \cdot \text{N} \) **Actions:** - Submit Button - Request Answer Option --- ### Part B **Task:** Calculate the force that must be exerted by the triceps muscle. **Instructions:** Express your answer using two significant figures. **Input Box:** - Symbol: \( F = \) - Unit: \( \text{N} \) **Actions:** - Submit Button - Request Answer Option
Transcribed Image Text:### Part A **Task:** Calculate the torque needed. Ignore the mass of the arm. **Instructions:** Express your answer using two significant figures. **Input Box:** - Symbol: \( \tau = \) - Unit: \( \text{m} \cdot \text{N} \) **Actions:** - Submit Button - Request Answer Option --- ### Part B **Task:** Calculate the force that must be exerted by the triceps muscle. **Instructions:** Express your answer using two significant figures. **Input Box:** - Symbol: \( F = \) - Unit: \( \text{N} \) **Actions:** - Submit Button - Request Answer Option
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