15° Deltoid 17 cm 38 cm A worker is holding his arm straight out parallel to the ground as he grabs a tool. His arm is perfectly straight. Use the information given in the picture and below to solve problem 3. a) Draw and label the free body diagram of all forces on the shoulder b) Calculate the force of the deltoid using the sum of the moments. c) Find the vertical reaction force of the shoulder. Is it acting "up" or “down" d) If the maximum tensile force of the deltoid muscle is 1000 [N], what is the maximum weight of a tool that the worker can carry in this exact position? Weight of the arm = 2.5[kg] Weight in the hand (tool) = 2[kg]

15° Deltoid 17 cm 38 cm A worker is holding his arm straight out parallel to the ground as he grabs a tool. His arm is perfectly straight. Use the information given in the picture and below to solve problem 3. a) Draw and label the free body diagram of all forces on the shoulder b) Calculate the force of the deltoid using the sum of the moments. c) Find the vertical reaction force of the shoulder. Is it acting "up" or “down" d) If the maximum tensile force of the deltoid muscle is 1000 [N], what is the maximum weight of a tool that the worker can carry in this exact position? Weight of the arm = 2.5[kg] Weight in the hand (tool) = 2[kg]

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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