Forces in action _______________________________________________________________________________________________________________________________________________________________________________________4. Addition of forces
A variety of mathematical operations can be performed with and upon vectors. One such operation is the addition of vectors. Two vectors can be added together to determine the result (or resultant). The net force experienced by an object was determined by computing the vector sum of all the individual forces acting upon that object.
That is the net force was the result (or resultant) of adding up all the force vectors. During that unit, the rules for summing vectors (such as force vectors) were kept relatively simple. Observe the following summations of two force vectors:ADDITION OF FORCES IN 1 DIMENSION The magnitude of the resultant force is the algebraic sum of the forces.- Adding forces in the same direction and along the same line- Adding forces in the opposite directions and along the same line. Check out the menu bar and watch the video about addition of forces.