Problem 4 Three cables, AD, AE, and ABC are connected at point A. The cable ABC is wrapped over a frictionless pulley and supports a block at point C. The system is in static equilibrium. Use the following set of numerical values to determine the tension in the cable ABC and its uncertainty. What quantity contributes the most to this uncertainty? Find the mass of the block at point C and its uncertainty. The acceleration due to gravity is g = 9.81 Ira/$2 exactly. Directions of the external forces acting on point A: 0 Cable ABC applies a force (pulls) at angle a = 35 i 1. 0 Cable AD applies a force at angle y = 180 (exactly). 0 Cable AE applies a force of 150 i 1 N at angle 3 = 270 i 1. 0 All angles are measured CCW from +x horizontal to the right. \"infr