This will allow you to validly compute components of force vectors to the nearest 0.01 N (using 9.80 m/s² for the acceleration due to gravity). 1. Remove a force table from storage and place it on the laboratory table. Place a circular level on a smooth part of the force table. Adjust the feet of the force table until the bubble is centered. The three common types of force systems include: (1) concurrent coplanar, (2) noncon-current coplanar, and (3) spatial (i.e., noncoplanar). Other common force system de-scriptors used in this article include collinear and parallel. In concurrent coplanar force systems (CCFS), all forces act through the same point and are on the same plane, but Converse of polvgon law of forces states that if any number of forces acting on a particle are in equilibrium. a closed polygon can be drawn whose sides represent these forces both in magnitude and direction. First Law of Equilibrium . A set of forces acting on a body will hold that body in equilibrium provided the vector sum of those forces adds to zero, i.e., provided the vectors representing the forces form a closed polygon when placed head to tail. the Objective refers to coplanar forces) Experiments G = 6.673x10-11 m3/(kg.s2) Rotation of Earth is not taken into account m1, m 2 = masses of two particles r = distance between two particles 2 1 2 r m m F = G Weight of a body (gravitational force acting on a body) is required to be computed in Statics as well as Dynamics. This law governs the gravitational attraction between any two •Resultant of several forces by polygon law -graphical approach F 2 F 1 F 3 F 4 F 1 F 2 F 3 F 4 R Given system of concurrent coplanar forces Force polygon for the given forces Course on "Engineering Mechanics" by Dr. Vela Murali. 41 The result shows the error is within limits of the experiment error. Precautions 1. The board should be stable and ver 2. The pulleys should be friction 3. The hangers should not touch the board or 4. Junction O should be in the middle of the paper 5. Points should be marked only when weights are at r 6. Points should be marked with sharp 7. This experiment pertains to the study of the system of coplanar and concurrent forces acting on a particle with the help of universal force table. Technical terms: Coplanar forces - forces acting in a plane. Concurrent forces - force meeting at a point. Resultant - A force capable of producing same effect as that of given force system. First Law of Equilibrium: A set of forces acting on a body will hold that body in equilibrium provided the vector sum of those forces adds to zero, i.e., provided the vectors representing the forces form a closed polygon when placed head to tail. Any two vectors (as shown in figure (a) below) may be added by the so-called "Parallelogram Law" to Part 1. Equilibrium with Three Forces We shall first study the equilibrium of the small ring when there are three forces acting on it. Two of the forces ( F1 and F2) will be fixed and the third one F3 adjusted until equilibrium is reached. 1. If necessary, level the force table using the small bubble level placed on the table's surface. 2. Polygon law of forces ppt presentation pdf format free (Analytical & Graphical):, three-force theorem, lamiâ¦s theorem, equilibrium equations (assisted animation). short cable Link 9 3. 25 Introduction subtopical-1 (lesson), equilibrium, concept of equilibr