Summary
Summary GR 11 Vektore in 2 Dimensies Opsomming
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Vektore in 2 Dimensies Opsomming Vektor vergelykings Stert by stert metode Bepaling van die Netto-krag (FNET) grafies. Kragte in ewewig. Ekwilibrant. Komponente.
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VEKTORE IN 2 DIMENSIES, Vektore in 2 Dimensies
Resultant van vektore
'n Resultant: Die vektorsom van twee of meer vektore, d.i. 'n enkele vektor wat dieselfde effek het as
twee of meer vektore tesame.
Skalaar: n Fiesiese hoeveelheid wat slags groote besit.
Vektor: n Fisiese hoeveelheid met groote en rigting.
Cartesiese Vlak: n stelsel asse wat met mekaar loodreg by die oorsprong (0;0) kruis.
Vektor vergelyking
Kies Regs as +
F2=2N
F1= 6N
F3=8N
Vektor vergelyking
FRES =F1 – F2 – F3
=+6 – 2 – 8
=-4N
4N na Links
Grafiese voorstelling.
Bereken FNET deur die stert by kop metode.
Skaal 1N:1cm
Grafies
F2= 5N 144,45⁰
α
F1=7N
F1=7N
F2= 5N
𝐴
FRES 2 =F12+ F2 2 Cos α =𝑆
=72 + 52
𝐹2
=49+25 Groote = 𝐹𝑁𝐸𝑇
Rigting
=√74 5
=8,6
=8,60 N FNET = 8,60N;144,45⁰
α = 54,450
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