A mechanic is reinstalling a newly-sharpened blade on a lawn mower. A wedged-in block of wood at C preve as the 34-lb force is applied to the wrench handle. The blade is bolted to a bracket attached to the motor sha through the bracket and blade. Determine the normal force at C. State any assumptions. Does it matter whe installed?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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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 34-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?
6.9"
34 lb
Answer: Nc=
i
2.02.0"
OoOB
-9"
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 34-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? 6.9" 34 lb Answer: Nc= i 2.02.0" OoOB -9" C lb
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