STATICS | Chapter 2 | P2-69 to P2-71 | Couple | 7th Edition | Engineers Academy

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Chapter 2: Force Systems: Couple
STATICS | Chapter 2 | P2-69 to P2-71 | Couple | 7th Edition | Engineers Academy
2/69 A lug wrench is used to tighten a square-head bolt.
If 50-lb forces are applied to the wrench as shown,
determine the magnitude F of the equal forces
exerted on the four contact points on the 1-in. bolt
head so that their external effect on the bolt is
equivalent to that of the two 50-lb forces. Assume
that the forces are perpendicular to the flats of the
bolt head.

2/70 A force–couple system acts at O on the circular
sector. Determine the magnitude of the force F if
the given system can be replaced by a stand-alone
force at corner A of the sector.

2/71 During a steady right turn, a person exerts the forces
shown on the steering wheel. Note that each force
consists of a tangential component and a radially inward component.
Determine the moment exerted about the steering column at O.

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[sidgunz]

You are a true lifesaver sir.Thanks a ton

[edgarmontemayor]

Hi! Why is 375 not divided into 2 since its distance form A to O is 375/2 which same goes for B to O?

[nabilelyousofy]

helo sir why haven't you set Fx and fy in this example and took the perpendicular distance from Fx and Fy ?

[joseallanm.dionaldoll]

hello sir new subscriber here, I just want to know if what book did you get this from

[KeiLois]

hello sir, can I ask why is the 375 divided by 1000? thank you

[piyayingverz]

can i ask why is it 8cos30 and not 8sin30? thank you