Question $5$

A uniform disk and a rodAB is pin$-$connected at $A.$ If the disk rolls without

slipping and the wall is smooth, determine the angular acceleration of the bar in

$ra\frac{d}{s^2}$ to $1$ decimal place, e$.$g$.,x.x$ or $.x$ format.

$L=1\mathrm{.}7$ feet

$R=0\mathrm{.}2$ feet

$P=6lb$

$P1=8lb$

$=0\mathrm{.}5$rad

${}^{}=-0\mathrm{.}6ra\frac{d}{s}$

$-14\mathrm{.}3$ margin of error $\frac{+}{-}0\mathrm{.}1$

Disk: sum forces in x and y $,$ sum moments about z $(3)$

Bar: sum forces in $x$ and $y,$ sum moments about $z(3)$

Disk rolls without slipping $(1)$

Pin constraint at A $(2)$

Surface constraint at B $(1)$

Solve $10$ equations, $10$ unknowns for theta$\_$ddot

Disk: sum forces in $x$ and y $,$ sum moments about z $(3)$

Bar: sum forces in $x$ and $y,$ sum moments about $z(3)$

Disk rolls without slipping $(1)$

Pin constraint at A $(2)$

Surface constraint at B $(1)$

Solve $10$ equations, $10$ unknowns for theta$\_$ddot