Extension to practical applications 2. The human forearm can be modeled as a simple lever. Indicate on the diagram with proportional arrows, the direction of the load and effort forces on the Radius bone at their points of action. Ignore the weight of the bones and triceps. Draw a fulcrum for the Radius bone. How will the effort force supplied by the bicep compare to the load force? Estimate the ratio of effort force / load force using the distances in the diagram and your collected data above. Scapula Tendon -0.049+ Humerus Bisceps muscle .204 = 0.155 Triceps muscle Radius Bonus! Ulna Page 3 of 3
Extension to practical applications 2. The human forearm can be modeled as a simple lever. Indicate on the diagram with proportional arrows, the direction of the load and effort forces on the Radius bone at their points of action. Ignore the weight of the bones and triceps. Draw a fulcrum for the Radius bone. How will the effort force supplied by the bicep compare to the load force? Estimate the ratio of effort force / load force using the distances in the diagram and your collected data above. Scapula Tendon -0.049+ Humerus Bisceps muscle .204 = 0.155 Triceps muscle Radius Bonus! Ulna Page 3 of 3
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 31P: A constant 20-N force pushes a small ball in the direction of the force over a distance of 5.0 m....
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