An AMAZON pack of mass \(7.0 \mathrm{~kg}\) is stationary on a horizontal rough surface. The coefficient of static friction for the pack is \(\mu_{s}=0.85\). The pack sorting device acts with a force \(\mathbf{F}\) that forms an angle of \(30^{\circ}\) with respect to the ground. Draw the forces involved and determine the value of the magnitude \(F\) for which the pack begins to move.