The forearm-hand complex weights 51N, and the center of mass is 0.17 m from the elbow joint. The person is holding a large wheel of cheese that weighs 98N. The center of mass of the cheese is 0.34 m from the elbow joint. The moment arm of the elbow flexors is estimated to be 0.03m from the elbow. The relative elbow angle is (angle between the humerus and the forearm) is 60°. What force must be exerted by the elbow flexors to keep the forearm in this static position (in N)?
The forearm-hand complex weights 51N, and the center of mass is 0.17 m from the elbow joint. The person is holding a large wheel of cheese that weighs 98N. The center of mass of the cheese is 0.34 m from the elbow joint. The moment arm of the elbow flexors is estimated to be 0.03m from the elbow. The relative elbow angle is (angle between the humerus and the forearm) is 60°. What force must be exerted by the elbow flexors to keep the forearm in this static position (in N)?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 29P
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The forearm-hand complex weights 51N, and the center of mass is 0.17 m from the elbow joint. The person is holding a large wheel of cheese that weighs 98N. The center of mass of the cheese is 0.34 m from the elbow joint. The moment arm of the elbow flexors is estimated to be 0.03m from the elbow. The relative elbow angle is (angle between the humerus and the forearm) is 60°. What force must be exerted by the elbow flexors to keep the forearm in this static position (in N)?
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