Q. Calculate the support reactions for the beam given below

SOLUTION:

Total load = 10 + 15 = 25kN

FIRST To find reactions

Taking moments about A
RB × 5 = 10 × 3 + 15 × 4 = 90
RB = 90/5 = 18kN
RA =Total load – RB
= 25 – 18 = 7kN

Or

Taking moments about B
RA × 5 = 15 × 1 + 10 × 2 = 35
RA = 35/5 = 7kN