$-6/125$ The $100-kg$ load is elevated by the cable which slides over the fixed drum with a coefficient of friction of $0\mathrm{.}50.$ The cable is secured to the slider A which is pulled slowly along its smooth horizontal guide bar by the force $P.$ Plot $P$ as a function of $$ from $=90$ to $=10$ and determine its maximum value along with the corresponding angle $$ Check your plotted value of $P_{\text{m}\text{a}\text{x}}$ analytically.

$P_{\text{m}\text{a}\text{x}}=2430Nat=26\mathrm{.}6$