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A cantilever beam of 3m long carries a u.d.l. of 2 kN/m over 2 m from free end and point load of 4 kN at free end. Draw SF and BM diagrams.
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Solution:

Support Reaction Calculation

ΣFy=0

RA4(2x2)=0

RA=8kN

Shear Force Calculations:

(F)A=+8kN

(FR)A=+8kN

(F)C=+8kN

(F)B=+4=4kN

(FR)B=44=0kN

Bending Moment Calculations:

MB=0kNmBisfreeend.

MC=(4x2)(2x2)x1=12kNm

MA=(4x4)(2x2)x3=28kNm

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