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Eigure P3.36 Three-phase AC system. 3-37. In a motion capture study of a runner, one frame shows the subject supporting her weight on one leg, as shown in Eig. P3.37. The length of the foot segment (from ankle to toe) is 8 in. and the length of the lower leg (from ankle to knee) is 18 in. X, in. (-6.25, 25) Ankle 30% 60⁰° Knee X Toes (a) During a motion capture study. 92 Knee Ankle Toes -x, in. (b) To find 0₁ and 0₂.

Eigure P3.36 Three-phase AC system. 3-37. In a motion capture study of a runner, one frame shows the subject supporting her weight on one leg, as shown in Eig. P3.37. The length of the foot segment (from ankle to toe) is 8 in. and the length of the lower leg (from ankle to knee) is 18 in. X, in. (-6.25, 25) Ankle 30% 60⁰° Knee X Toes (a) During a motion capture study. 92 Knee Ankle Toes -x, in. (b) To find 0₁ and 0₂.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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**Educational Text: Motion Capture Study of a Runner's Leg Position** --- **Section: Motion Capture in Biomechanics** *Problem Description* In a motion capture study of a runner, one frame shows the subject supporting their weight on one leg. We analyze this frame using a diagram to determine the position and angles of the leg segments. *Figure P3.37 Overview* The leg is represented in two different positions: 1. **Diagram (a):** Illustrates the leg during a motion capture study with specific angles. - The foot is touching the ground at the origin of the coordinate system (x = 0, y = 0). - The segment from the ankle to the toes forms a 30-degree angle with the horizontal axis. - The segment from the ankle to the knee forms a 60-degree angle with the vertical line. 2. **Diagram (b):** Used to calculate unknown angles \(\theta_1\) and \(\theta_2\). - The knee's location is given as (-6.25 in., 25 in.). - Shown in a coordinate system where the foot is at the origin. *Task Details* - **(a)** Calculate the position of the knee when the toes are at the ground at the origin. - **(b)** For the knee positioned in the second quadrant with coordinates (-6.25 in., 25 in.), determine the angles \(\theta_1\) and \(\theta_2\). *Measurements* - Foot segment (ankle to toe): 8 inches. - Lower leg segment (ankle to knee): 18 inches. These diagrams and calculations are crucial for understanding movement and biomechanics in engineering applications. --- **End of Section** *This educational content is designed for use in engineering and biomechanics courses, where visualization and analysis of movement are vital.*
Transcribed Image Text:**Educational Text: Motion Capture Study of a Runner's Leg Position** --- **Section: Motion Capture in Biomechanics** *Problem Description* In a motion capture study of a runner, one frame shows the subject supporting their weight on one leg. We analyze this frame using a diagram to determine the position and angles of the leg segments. *Figure P3.37 Overview* The leg is represented in two different positions: 1. **Diagram (a):** Illustrates the leg during a motion capture study with specific angles. - The foot is touching the ground at the origin of the coordinate system (x = 0, y = 0). - The segment from the ankle to the toes forms a 30-degree angle with the horizontal axis. - The segment from the ankle to the knee forms a 60-degree angle with the vertical line. 2. **Diagram (b):** Used to calculate unknown angles \(\theta_1\) and \(\theta_2\). - The knee's location is given as (-6.25 in., 25 in.). - Shown in a coordinate system where the foot is at the origin. *Task Details* - **(a)** Calculate the position of the knee when the toes are at the ground at the origin. - **(b)** For the knee positioned in the second quadrant with coordinates (-6.25 in., 25 in.), determine the angles \(\theta_1\) and \(\theta_2\). *Measurements* - Foot segment (ankle to toe): 8 inches. - Lower leg segment (ankle to knee): 18 inches. These diagrams and calculations are crucial for understanding movement and biomechanics in engineering applications. --- **End of Section** *This educational content is designed for use in engineering and biomechanics courses, where visualization and analysis of movement are vital.*
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