4. An Olympic lifter (m= 103kg) is holding a lift with a mass of 350 kg. The bar exerts a purely vertical force that is equally distributed between both hands. Each arm has a mass of 9 kg, are 0.8m long and form a 40° angle with the horizontal. The CoM for each arm is 0.5 m from hand. Assuming the lifter is facing us in the diagram below, his right deltoid inserts 14cm from the shoulder at an angle of 13° counter-clockwise from the humerus. 0.8m center of mass of arm a) You are interested in calculating the force in the right deltoid. Draw a free body diagram of the right arm including the external forces, joint reaction forces, a coordinate system and state your assumptions.

4. An Olympic lifter (m= 103kg) is holding a lift with a mass of 350 kg. The bar exerts a purely vertical force that is equally distributed between both hands. Each arm has a mass of 9 kg, are 0.8m long and form a 40° angle with the horizontal. The CoM for each arm is 0.5 m from hand. Assuming the lifter is facing us in the diagram below, his right deltoid inserts 14cm from the shoulder at an angle of 13° counter-clockwise from the humerus. 0.8m center of mass of arm a) You are interested in calculating the force in the right deltoid. Draw a free body diagram of the right arm including the external forces, joint reaction forces, a coordinate system and state your assumptions.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Machining Processes and Machine Tools

Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many more are applied to get the desired shape. As compared to other manufacturing processes, machining is precise and versatile.

Question

Help to draw free body diagram

4. An Olympic lifter (m = 103kg) is holding a lift with a mass of 350 kg. The bar
exerts a purely vertical force that is equally distributed between both hands. Each arm has a
mass of 9 kg, are 0.8m long and form a 40° angle with the horizontal. The CoM for each arm
is 0.5 m from hand. Assuming the lifter is facing us in the diagram below, his right deltoid
inserts 14cm from the shoulder at an angle of 13° counter-clockwise from the humerus.
0.8m
40°
center of mass
of arm
a) You are interested in calculating the force in the right deltoid. Draw a free body diagram
of the right arm including the external forces, joint reaction forces, a coordinate system and
state your assumptions.

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