Beräkning Av Kraft Och Moment

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RA*L-F*L/2=0

RA-F+RB=0

Fy=F*sin y

ex RA*5-800*5/2=0

=> RA=(800*2,5)/5= 400N

ex RB=400-800= 400N

Fx=F*cosx

För att bestämma den totala kraften på ett föremål som har krafter i både x- och y-led så används pythagoras sats, efter att man räknar ut krafter i x- och y-led. Tex:

y-led: -4-5-10*sin40 = -15,4kN (negativ riktning) x-led: 10*cos40 = 7,7kN Sedan: =

= Moment:

=

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