Resultant Forces

Basically, the resultant force on an object is the sum of all the forces acting upon it.
This is useful to know, since this single force has the same physical effect on the object as all of the others (as would be expected.)

Although unlikely to actually happen perfectly in the real world, the resultant force on an object can be 0. This can happen if there are two forces on an object, both from opposite sides to each, and both of the same force.


The effects of this are as follows:

• If the object was already moving, it will now move in the direction it was already moving, but at a constant speed.
• Or, if the resultant force is not 0, the object will either speed up or slow down, depending on the size of each force.