University:
Michigan State University
Course:
ERG 160 | Success in Science, Technology, Engineering, and Mathematics
Academic year:

2019
Views:

253

Pages:

2
Author:

Nicole Wang

COSMOS: Complete Online Solutions Manual Organization System Chapter 8, Solution 66. FBD jack handle: See Section 8.6 ΣM C = 0: aP − rQ = 0 or P = r Q a FBD block on incline: (a) Raising load Q = W tan (θ + φ s ) P= r W tan (θ + φs ) a continued Vector Mechanics for Engineers: Statics and Dynamics, 8/e, Ferdinand P. Beer, E. Russell Johnston, Jr., Elliot R. Eisenberg, William E. Clausen, David Mazurek, Phillip J. Cornwell © 2007 The McGraw-Hill Companies. COSMOS: Complete Online Solutions Manual Organization System PROBLEM 8.66 CONTINUED (b) Lowering load if screw is self-locking ( i.e.: if φs > θ ) Q = W tan (φs − θ ) P= (c) r W tan (φs − θ ) a Holding load is screw is not self-locking ( i.e: if φs < θ ) Q = W tan (θ − φs ) P= Vector Mechanics for Engineers: Statics and Dynamics, 8/e, Ferdinand P. Beer, E. Russell Johnston, Jr., Elliot R. Eisenberg, William E. Clausen, David Mazurek, Phillip J. Cornwell © 2007 The McGraw-Hill Companies. r W tan (θ − φ s ) a

COSMOS Chapter 8 Solution 66

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