Movement in Two Dimensions: This page focuses on several different scenarios involving motion in two dimensions.
Equilibrium and the Equilibrant:
As was said in the study of forces, an object is in a sate of equilibrium with respect to forces when the net force acting on it equals zero. [F(net) = 0 Newtons, in the metric system, or 0 lbs, in the English system.) When an object is in this state of equilibrium, it is either standing still with respect to a reference point or it moving with constant velocity with respect to a reference point. As we have already seen, an object that is in a state of equilibrium will NOT experience an acceleration.
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