Question $2$ ROW $09$ to ROW $15$

A uniform rod is supported in various configurations as shown in the figures below. A generic

force and moment system acts on the rod $($not included in the figures$).$ The rod is in equi$-$

librium. Consider the reactions that can potentially develop at the supports in each scenario

and answer the questions that follow.

Supports: a smooth wall at

A and smooth rollers at $B$

and $C.$

Supports: a pin$-$connection

at $D$ and a cable at $E.$

Supports: a pin$-$connection

at $G$ and a smooth collar at

H$.$

$2\mathrm{.}1$ Considering the nature of the support, indicate which statement ap$-$

plies for the potential force reactions developed at each indicated

support.

$1$ Single reaction force with a known line of action and known sense.

$2$ Single reaction force with a known line of action and an unknown sense.

$3$ Two reaction forces, each with a known line of action and known sense.

$4$ Two reaction forces, each with a known line of action and unknown sense.

$5$ None of the above options apply.

Support $A$:$,$ ROW $09$

Support $B$:$,$ ROW $10$

Support D: ROW $11$

Support $E$: ROW $12$

Support $G$:$,$ ROW $13$

Support $H$ : ROW $14$

$2\mathrm{.}2$ Indicate which of the supports are able to provide a potential mo$-$ ROW $15$

ment reaction.