Give the following problem a try. If you get stuck, here is one way to work it: Essential Solution Video.

Rigid bar ABC is supported by bronze rods $(1)$ and $(2)$ as shown below. A concentrated load of $P=35$ kips is applied to the free end of

rod$(3).$

Each of the rods has an elastic modulus of $E=15000$ksi and an area of $0\mathrm{.}2in.{?}^2.$ The rod lengths are $L_1=15ft,L_2=22ft,$ and $L_3=10ft.$

If $a=24$ in$.$ and $b=42$ in$.,$ what is the downward deflection of the rigid bar at B$?$

Answer:

Downward deflection at B $=$

in$.$