Equilibrium definition and problem answer

Equilibrium definition and problem answer

problem :- Determine the values of the reactions of RA and RB for the simply-supported beam shown
Equilibrium definition and problem anshwer
Also red:- Problem 1.2 : Determine the values of the reactions RA and RB, when a beam is simplysupported at its ends and subjected to a downward force of 5 kN.
Solution:
Taking moments about B
clockwise couples = counter-clockwise couples
RA x 4 = 3 x 6+10 x2
RA = 18 + 20/4
RA = 9.5 kN
Resolving forces vertically
RA+RB = 3+10
Or
RB = 13 - 9.5 = 3.5 kN

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