WHAT MORE INFORMATION IS NEEDED FROM THE EXPERT? COMPUTATIONAL ANSWER CAN BE IN MATLAB BUT MANUAL ANSWER IS PREFFERED. I NEED HELP FINDING THE CORRECT ANSWER AND PROCESS OF THIS PROBLEM. INFORMATION: A homogeneous disk of mass m and radius r is pin$-$connected at A$.$This problem is best suited for normal$-$tangential polar coordinates since the rigid$-$body is rotating about a fixed$-$point, A$.$ Thus, the unknowns are the $2$ pin reaction forces, one normal and one tangential$,$ at A$,$ and the angular acceleration of the disk about A$.$

The disk has mass $14$ kg and radius $0\mathrm{.}3$ m $.$ Determine the magnitude of the

reaction force, to the nearest Newton, after the disk has fallen from the initial

angle of $\frac{}{2}$rad to angle $0\mathrm{.}5$ rad $.$

Hints:

Correct Answer

$282$ margin of error

$1.$Sum forces in normal$-$tangential and sum moments about A$.$

$2.$Integrate the EOM using $v^{*}d\frac{v}{d}x$ to yield theta$\_$dot as a function of

theta.

$3.$Substitute EOM and theta$\_$dot function into sum of force equations to

solve for normal and tangential reaction forces for any angle theta.

$4.$Find magnitude.