1. A 100 kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the crate begins to move downward just as the inclination angle reaches 37". What is the coefficient of static friction between the crate and the inclined surface? (Hint: find the balance of force equations for the forces parallel and perpendicular to the plane.) 2. Find the tension in each cable in the system shown on the right. Assume the cables are massless. Discuss what happens to the tensions in the limiting cases of the top angle (i.e. 60> 0 or 90), and why the limits make sense