Problem $5.$ The wooden table is made from a square board having a weight of $15lb.$ Each leg weighs $2lb$ and is $3ft$ long. Determine how high the center of mass is from the floor. Also, what is the angle, measured from horizontal, through which the top surface can be tilted on two legs before it begins to overturn? Neglect the thickness of each leg and the tabletop.Problem $6.$ The truss below was designed to hang a one$-$of$-$a$-$kind sign that weighs $1000lb.$ The sign

is attached to the truss by two cables at attached at pin $H$ of the truss and a rod that is attached at pin $G$

of the truss; the rod is pin connected at both ends. The truss is attached to the wall by a pin at A and

another cable $($there are $3$ cables at point $H).$ Find the internal force in members $AE,CH,EC,$ and EF$.$