This is the simplest case of vector addition. If two forces are acting in the same direction, then you can just add them, to get the net force.
This is the simplest case of vector addition. If two forces are acting in the same direction, then you can just add them, to get the net force.
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You find the vector sum of all the forces. That is the resultant, or net, force.
as adding a ".... in the opposite direction.
It is the same as adding a positive and adding a negative number
A negative force. Since the force added in the opposite direction works against the original force, you would subtract the added force from the original force. Since subtracting a positive is the same thing as adding a negative, this force would be considered negative to the positive direction.
In principle, any force acting on an object is unbalanced, UNLESS there is a second force in the opposite direction, acting on the same object.
The net force resulting from two forces acting in the same direction is the sum of their magnitudes, and continues to act in the same direction.
In the same direction, you simply add them
A negative force. Since the force added in the opposite direction works against the original force, you would subtract the added force from the original force. Since subtracting a positive is the same thing as adding a negative, this force would be considered negative to the positive direction.
That is equivalent to adding a positive number and a negative number. If the forces have the same magnitude, it is the same as adding a number and its additive inverse.
Forces are vector quantities. This means they have both a magnitude and direction associated with them. If you add vectors going in the opposite directions it is the same as subtracting one from the other. Therefore, the resultant force is the difference between the forces.