Determine the force (Newtons) of biceps brachii for each elbow positions given that the weight of the forearm & hands is 1.5kg at 0.15m from the elbow joint. Please show your solutions. Sample solution was provided for 30 degrees. Elbow Angles Horizontal Distance of the weight of forear, (dx COG in meters) Force of Biceps Brachii (in Newtons)
Determine the force (Newtons) of biceps brachii for each elbow positions given that the weight of the forearm & hands is 1.5kg at 0.15m from the elbow joint. Please show your solutions. Sample solution was provided for 30 degrees. Elbow Angles Horizontal Distance of the weight of forear, (dx COG in meters) Force of Biceps Brachii (in Newtons)
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter8: Centroids And Distributed Loads
Section: Chapter Questions
Problem 8.73P
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Determine the force (Newtons) of biceps brachii for each elbow positions given that the weight of the forearm & hands is 1.5kg at 0.15m from the elbow joint. Please show your solutions. Sample solution was provided for 30 degrees.
Elbow Angles | Horizontal Distance of the weight of forear, (dx COG in meters) |
Force of Biceps Brachii (in Newtons) |
30o |
dx = (sin30o)(0.15m) dxCOG = 0.075 m |
τ = (Fbiceps)(dx_biceps)+(FCOG)(dx_COG) τ = (Fbiceps)(0.03m)+(1.5kg)(-9.8m/s2)(0.075m) τ = equal to zero since the system is in statics 0 = (Fbiceps)(0.03m)+(1.5kg)(-9.8m/s2)(0.075m) Fbiceps = 36.75N |
60o | ||
90o | ||
120o | ||
150o |
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