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Muscle 2 E Muscle 1 0₁ 02% dM₁ dm₂ dw θω dDB Ow Hand Dumbbell The figure provides a free body diagram of several forces acting about the elbow joint (E) for an isometric elbow flexion exercise. In this case, the subject is holding a 279 N dumbbell (located dp = 48 cm from the elbow) in a stationary position. W is the combined weight of the forearm and hand (28 N) and acts through the CG of this system located dw = 19 cm from the elbow). The forearm is elevated from the horizontal, resulting in a 0w = 74 deg angle between the forearm and line of action of each weight. The force produced by Muscle1 is 964 N (with an angle of pull of 01 = 53 deg and an nsertion ength of dm₁ = 5 cm from the elbow). Muscle2 has an angle of pull of 0M2 = 24 deg and an insertion length of dm2 = 8 cm from the elbow. What is the force magnitude of Muscle2 required to keep the elbow in a stationary position? You are allowed a 5% margin of error for rounding.

Muscle 2 E Muscle 1 0₁ 02% dM₁ dm₂ dw θω dDB Ow Hand Dumbbell The figure provides a free body diagram of several forces acting about the elbow joint (E) for an isometric elbow flexion exercise. In this case, the subject is holding a 279 N dumbbell (located dp = 48 cm from the elbow) in a stationary position. W is the combined weight of the forearm and hand (28 N) and acts through the CG of this system located dw = 19 cm from the elbow). The forearm is elevated from the horizontal, resulting in a 0w = 74 deg angle between the forearm and line of action of each weight. The force produced by Muscle1 is 964 N (with an angle of pull of 01 = 53 deg and an nsertion ength of dm₁ = 5 cm from the elbow). Muscle2 has an angle of pull of 0M2 = 24 deg and an insertion length of dm2 = 8 cm from the elbow. What is the force magnitude of Muscle2 required to keep the elbow in a stationary position? You are allowed a 5% margin of error for rounding.

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
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Muscle 2 E Muscle 1 0₁29 1 dM1 dM₂ dw Ow W dDB Ow Hand Dumbbell The figure provides a free body diagram of several forces acting about the elbow joint (E) for an isometric elbow flexion exercise. In this case, the subject is holding a 279 N dumbbell (located dpB = 48 cm from the elbow) in a stationary position. W is the combined weight of the forearm and hand (28 N) and acts through the CG of this system (located dw = 19 cm from the elbow). The forearm is elevated from the horizontal, resulting in a 0w = 74 deg angle between the forearm and line of action of each weight. The force produced by Muscle1 is 964 N (with an angle of pull of 0M1 = 53 deg and an insertion length of dm1 = 5 cm from the elbow). Muscle2 has an angle of pull of 0m2 = 24 deg and an insertion length of dm2 = 8 cm from the elbow. What is the force magnitude of Muscle2 required to keep the elbow in a stationary position? You are allowed a 5% margin of error for rounding.
Transcribed Image Text:Muscle 2 E Muscle 1 0₁29 1 dM1 dM₂ dw Ow W dDB Ow Hand Dumbbell The figure provides a free body diagram of several forces acting about the elbow joint (E) for an isometric elbow flexion exercise. In this case, the subject is holding a 279 N dumbbell (located dpB = 48 cm from the elbow) in a stationary position. W is the combined weight of the forearm and hand (28 N) and acts through the CG of this system (located dw = 19 cm from the elbow). The forearm is elevated from the horizontal, resulting in a 0w = 74 deg angle between the forearm and line of action of each weight. The force produced by Muscle1 is 964 N (with an angle of pull of 0M1 = 53 deg and an insertion length of dm1 = 5 cm from the elbow). Muscle2 has an angle of pull of 0m2 = 24 deg and an insertion length of dm2 = 8 cm from the elbow. What is the force magnitude of Muscle2 required to keep the elbow in a stationary position? You are allowed a 5% margin of error for rounding.
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Mechanical Engineering homework question answer, step 1, image 1

The dimensions are 

dM1=5 cm, θM1=53°dM2=8 cm, θM2=24°dDB=48 cmdW=19 cm, θW=74°W=28 ND=279 NM1=964 N

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