Fourth year of secondary education
Statics
Inma Sevila
 Statics 
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THE RESULTANT FORCE
We have seen on the previous page that several forces acting on the same object produce a single effect.  Would it be possible to substitute all these forces with one single force which produces the same effect as the combined action of all of them?
 

We have represented a red object held by two elastic cords.

1-Describe the forces acting on the object.

2-Click on the "calculate resultant force" control.  Observe and describe what happens in the visual.

3- Looking at the visual, note down the components of the elastic forces and that of the resultant which act on the object placed in the following positions: (-1,0); (1,0); (-2,1); (1, 1.5).

Learn

We call the force which has the same effect on the object as that achieved by more than one force, the resultant force.

The X component is calculated by adding up all the X components of the forces acting on the object.

The Y component is calculated adding up all the Y components of the acting forces.

Question

Calculate in your notebook the resultant of the elastic forces acting on the object in the positions indicated in the exercise in the visual and check your answer with the one given in the visual.

Forces
The module of a force
The orientation and direction of forces
Components of a force
The effect of various forces on a body
The resultant of a system of forces
A counterbalance
ACTIVITIES
EVALUATION