Three monkeys $A,B,$ and $C$ weighing $12,15,$ and $21$ lb $,$ respectively, are climbing along the heavy rope wall suspended from the uniform beam. If monkeys $A,B,$ and $C$ have velocities of $7,2,$ and $7f\frac{t}{sec},$ and accelerations of $0\mathrm{.}5,1\mathrm{.}8,$ and $0\mathrm{.}8f\frac{t}{se{c}^2},$ respectively, determine the reactions at $D$ and $E$ caused by the motion and weight of the monkeys. The support at $E$ makes contact with only one side of the beam at a time. Assume for this analysis that the rope wall remains rigid.

Answers:

$D_x=$

$x$