What kind of force has no change in motion?

Answer 1

I must note that it is invalid for a force to have a "change in motion" because forces do not move, (although the point they act on can move) if you mean "causes no change in motion" then my answer is that:

Fundementaly all forces cause an acseleration of the object they are acting upon unless that force that is balenced (cancled out) by another force. This is expressed by f=ma where f is the total forces acting on the object, m is the mass and a is the acseleration.

Answer 2

A balanced force, where the forces acting on an object cancel each other out, will result in no change in motion. This means that the object will remain at rest or continue moving at a constant velocity.

Answer 3

an equal force applied at a vector opposite the force in question.

Answer 4

Field force can't, so long as the field is uniform.

e.g. Coulomb force in a uniform electric field, gravity in a uniform gravitational field.