A mechanic is reinstalling a newly-sharpened blade on a lawn mower. A wedged-in block of wood at C prevents the blade from rotating as the 26-lb force is applied to the wrench handle. The blade is bolted to a bracket attached to the motor shaft O, which protrudes through the bracket and blade. Determine the normal force at C. State any assumptions. Does it matter whether the bolt at B is installed? 5.7" 26 lb 2.02.0" AO OB -8" C

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter5: Three-dimensional Equilibrium
Section: Chapter Questions
Problem 5.46P: The 80-lb homogeneous plate is supported by a ball-and-socket joint at A, a slider hearing at B, and...
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A mechanic is reinstalling a newly-sharpened blade on a lawn mower. A wedged-in block of wood at C prevents the blade from rotating
as the 26-lb force is applied to the wrench handle. The blade is bolted to a bracket attached to the motor shaft O, which protrudes
through the bracket and blade. Determine the normal force at C. State any assumptions. Does it matter whether the bolt at B is
installed?
5.7"
26 lb
Answer: Nc = i
2.02.0"
AO OB
8"
C
lb
Transcribed Image Text:A mechanic is reinstalling a newly-sharpened blade on a lawn mower. A wedged-in block of wood at C prevents the blade from rotating as the 26-lb force is applied to the wrench handle. The blade is bolted to a bracket attached to the motor shaft O, which protrudes through the bracket and blade. Determine the normal force at C. State any assumptions. Does it matter whether the bolt at B is installed? 5.7" 26 lb Answer: Nc = i 2.02.0" AO OB 8" C lb
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