QUESTION $2[30$ MARKS$]$

The Howe bridge is subjected to the loading shown in Figure $2.$ The truss is supported by pintype support at $A,$ and roller$-$type support at $E.$

a$)$ Determine the support reaction at pin$-$type support at A and roller$-$type support at $E.$

$[10$ Marks$]$

b$)$ Calculate the force in members $HD,CD$ and $GD$ and state if the members are in tension or compression.

$[20$ Marks$][$CO$2,$ PO$2,$ C$5]$