Question

keisha writes that if an object has any external forces acting on it, then the object can be in dynamic equilibrium but not static equilibrium. which statement best describes keishas error? an object that is not moving is always in static equilibrium. an object in either state of equilibrium must have no net force acting on it. an object that is moving must be in dynamic equilibrium. an object in either state of equilibrium must have no forces acting on it.

Explanation:

In both static and dynamic equilibrium, the net force acting on an object is zero. Just because there are external forces doesn't mean an object can't be in static equilibrium if the forces balance out. An object in either state of equilibrium must have no net force acting on it.

Answer:

An object in either state of equilibrium must have no net force acting on it.