The spool shown in the figure has a weight of WAB and its center of gravity is locatedat its center geometric 0, the spool has a larger radius R and an inner radius r and hasa coiled string. Block C has a uniform weight WC. Consider the friction betweenblock C and the top of the spool at A, between the spool and the surface at point B,and between the rope and pulley D, the friction coefficients are respectively: us @ A,us @ B and us @ D. The rope is parallel to the plane.Carry out:a) The free-body diagrams of the block and reel.b) The calculation of the maximum value of P that can be applied without losing theequilibrium of the system.c) Indicate the number of unknowns and what they areRadius (m)Weights (N)Friction coefficientsWCus @ Aus @ Bus @ DRWAB0,120,0830,0055,000,450,200,30 Block C slidesfrictionlessCRopeHs@AAHs@DDRHs@Bоо

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The spool shown in the figure has a weight of WAB and its center of gravity is located at its center geometric 0, the spool has a larger radius R and an inner radius r and has a coiled string. Block C has a uniform weight WC. Consider the friction between block C and the top of the spool at A, between the spool and the surface at point B, and between the rope and pulley D, the friction coefficients are respectively: us @ A, us @ B and µs @ D. The rope is parallel to the plane. Carry out: a) The free-body diagrams of the block and reel. b) The calculation of the maximum value of P that can be applied without losing the equilibrium of the system. c) Indicate the number of unknowns and what they are

The spool shown in the figure has a weight of WAB and its center of gravity is located at its center geometric 0, the spool has a larger radius R and an inner radius r and has a coiled string. Block C has a uniform weight WC. Consider the friction between block C and the top of the spool at A, between the spool and the surface at point B, and between the rope and pulley D, the friction coefficients are respectively: us @ A, us @ B and µs @ D. The rope is parallel to the plane. Carry out: a) The free-body diagrams of the block and reel. b) The calculation of the maximum value of P that can be applied without losing the equilibrium of the system. c) Indicate the number of unknowns and what they are

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.72P

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