Sample Problem $7\mathrm{.}3$

STRATEGY:

Taking entire beam as free$-$body, calculate reactions at A and $B.$

Determine equivalent internal forcecouple systems at sections cut within segments $AC,CD,$ and $DB.$

Draw the shear and bending moment diagrams for the beam $AB.$ The

Plot results. distributed load of $7\mathrm{.}2k\frac{N}{m}.$ extends over $0\mathrm{.}3m.$ of the beam, from $A$ to $C,$ and the $1\mathrm{.}8kN$ load is applied at $E.$

Step by step plz i get confused easily