A mechanic is reinstalling a newly-sharpened blade on a lawn mower. A wedged-in block of wood at C pre as the 22-lb force is applied to the wrench handle. The blade is bolted to a bracket attached to the motor through the bracket and blade. Determine the normal force at C. State any assumptions. Does it matter w installed?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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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 22-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?
6.4"
22 lb
Answer: Nc=
2.02.0"
DOB
9.4"
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 22-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? 6.4" 22 lb Answer: Nc= 2.02.0" DOB 9.4" lb
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