8th Edition

ISBN: 9781118807330

Author: James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher: WILEY

Concept explainers

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial …

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Textbook Question

Chapter 3.3, Problem 44P

A woman is holding a 3.6-kg sphere in her hand with the entire arm held horizontally as shown in the figure. A tensile force in the deltoid muscle prevents the arm from rotating about the shoulder joint O; this force acts at the 21° 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 U = 1.9 kg, the mass of the lower arm is m L = 1.1 kg, and the mass of the hand is m H = 0.4 kg; all the corresponding weights act at the locations shown in the figure.

Chapter 3.3, Problem 44P, A woman is holding a 3.6-kg sphere in her hand with the entire arm held horizontally as shown in the

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Chapter 3.3, Problem 43P

Chapter 3.3, Problem 45P

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A woman is holding a 3.7-kg sphere in her hand with the entire arm held horizontally as shown in the figure. A tensile force in the deltoid muscle prevents the arm from rotating about the shoulder joint O; this force acts at the 21° angle shown. Determine the x- component of the force reaction at the shoulder joint O. The mass of the upper arm is my = 1.9 kg, the mass of the lower arm is m₁ = 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. Calculate your answer with one decimal figure accuracy. g = 9.81 m/s². Deltoid muscle FD 21° 125 mm 130 mm WU 412 mm- y 1 I L- 635 mm YW₂ Ws WH

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Chapter 3 Solutions

Engineering Mechanics: Statics

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