To move faster or gain speed. If the forces acting on an object do not cancel each other out, the object might change speed and accelerate. A counterbalancing of weight, force, or influence. An object is said to be in balance when all of the forces and counterforces acting on it cancel each other out. An agency or influence that, if applied to a free body, results chiefly in an acceleration of the body and sometimes in elastic deformation and other effects.
Gravity is one of the fundamental forces that acts on an object in flight.
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