OBJECT: To determine by means of vector diagrams the resultant of several concurrent forces and to check the accuracy of the result on a force table.
METHOD: Each student is assigned a problem. In this problem it is assumed that the magnitude and direction of certain forces acting on a body are known. The resultant and anti-resultant (equilibrant) of these given forces are determined both by graphical method and by the use of trigonometric relationships. The accuracy of the result is checked on a force table.
