1. A person holds a 50.0-N sphere in his hand. The forearm is horizontal. The biceps musde attached 3.00 cm from the joint, and the sphere is 35.0 cm from the joint. See the accompanying figure a) What are the equations for static equilibrium of the forces? b) About point will you choose to analyze the torques? What are the equations for static equilibrium of the torques? c) What upward force d) What is the downward force must the tendon exert to keep the forearm horizontal? on the forearm at the elbow joint?

1. A person holds a 50.0-N sphere in his hand. The forearm is horizontal. The biceps musde attached 3.00 cm from the joint, and the sphere is 35.0 cm from the joint. See the accompanying figure a) What are the equations for static equilibrium of the forces? b) About point will you choose to analyze the torques? What are the equations for static equilibrium of the torques? c) What upward force d) What is the downward force must the tendon exert to keep the forearm horizontal? on the forearm at the elbow joint?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 39P: The forearm shown below is positioned at an angle with respect to the upper arm , and a 5.0- kg...

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