Solution manual for vector mechanics QUIZ 2022;

CHAPTER 2 h




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, PROBLEMh2.1

Twoh forcesh areh appliedh ash shownh toh ah hook.h Determineh graphicallyh thehma
gnitudeh andh directionh ofh theirh resultanth usingh (a)h theh parallelogramh law,
(b)hthehtrianglehrule.




SOLUTION

(a) Parallelogramhlaw:




(b) Trianglehrule:




Wehmeasure: Rh =h1391hkN,h h h =h 47.8 Rh =h1391hN 47.8h ◀




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, PROBLEMh2.2

Twohforcesh areh appliedh ashshownhtoh ahbracketh support.h Determinehgra
phicallyh theh magnitudeh andh directionh ofh theirh resultanth using
(a)hthehparallelogramhlaw,h(b)hthehtrianglehrule.




SOLUTION


(a) Parallelogramhlaw:




(b) Trianglehrule:




Wehmeasure: Rh =h 906h lb, h =h 26.6 Rh=h906hlb 26.6h ◀




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