Q2-A man is holding a 3.6-kg sphere in his hand with the entire arm held horizontally as shownin the figure. tensile force in the deltoid muscle prevents the arm from rotating about theshoulder joint O; this force acts at the angle shown. Determine the force exerted by thedeltoid muscle on the upper arm at A and the x- and y-components of the force reaction atthe shoulder joint O. The mass of the upper am is (m,-1.9 kg), the mass of the lower arm is(m-1.1 kg), and the mass of the hand is (m-0.4 kg); all the corresponding weights act atthe locations shown in the figure.Group AX= 2 mmGroup BX= 4 mmGroup CX= 6 mm3.6(9.81) NDeltoid muscleL-FD21°WU125 mm'WLWH130 mm412 mm(635+x) mm

As no specific group is given, the question is solved for group A (x = 2 mm). Draw the FBD for the…

Q2-A man is holding a 3.6-kg sphere in his hand with the entire arm held horizontally as shown in the figure. tensile force in the deltoid muscle prevents the arm from rotating about the shoulder joint 0; this force acts at the angle shown. Determine the force exerted by the deltoid muscle on the upper am at A and the x- and y-components of the force reaction at the shoulder joint O. The mass of the upper arm is (m,-1.9 kg), the mass of the lower am is (m-1.1 kg), and the mass of the hand is (m-0.4 kg); all the corresponding weights act at the locations shown in the figure. Group A X= 2 mm Group B X= 4 mm Group C X=6 mm

Q2-A man is holding a 3.6-kg sphere in his hand with the entire arm held horizontally as shown in the figure. tensile force in the deltoid muscle prevents the arm from rotating about the shoulder joint 0; this force acts at the angle shown. Determine the force exerted by the deltoid muscle on the upper am at A and the x- and y-components of the force reaction at the shoulder joint O. The mass of the upper arm is (m,-1.9 kg), the mass of the lower am is (m-1.1 kg), and the mass of the hand is (m-0.4 kg); all the corresponding weights act at the locations shown in the figure. Group A X= 2 mm Group B X= 4 mm Group C X=6 mm

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.41P: The center of gravity of the 3000-lb car is at G. The car is parked on an incline with the parking...

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Q2-A man is holding a 3.6-kg sphere in his hand with the entire arm held horizontally as shown in the figure. tensile force in the deltoid muscle prevents the arm from rotating about the shoulder joint O; this force acts at the angle shown. Determine the force exerted by the deltoid muscle on the upper arm at A and the x- and y-components of the force reaction at the shoulder joint O. The mass of the upper arm is (m,=1.9 kg), the mass of the lower arm is (m-1.1 kg) , and the mass of the hand is (my=0.4 kg); all the corresponding weights act at the locations shown in the figure. X= 6 mm 3.6(9.81) N Deltoid muscle FD 21° 'Wy 125 mm WL WH 130 mm 412 mm (635+x) mm
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