It is a conflict.
In many works of literature, the main conflict is established between a protagonist and an antagonist. The protagonist is usually the main character whose journey drives the story, while the antagonist is the opposing force or character that creates conflict and obstacles for the protagonist to overcome. This dynamic relationship between the protagonist and antagonist is often central to the story's plot and resolution.
Agony!
The nemesis of the PROTAGONIST. Usually the villain in a story. In the Harry Potter books it is Lord Voldemort.
To struggle or contend, as with an opposing force; to fight., To fight with; to oppose by force, argument, etc.; to contend against; to resist., A fight; a contest of violence; a struggle for supremacy., An engagement of no great magnitude; or one in which the parties engaged are not armies.
The definition for external conflict is a struggle between two characters. It can be a struggle between a character and an outside force.
Tybalt is an antagonist to Romeo, since he is constantly trying to start fights with him and eventually gets him into one.
The force opposing relative motion of two objects in contact is called friction. Friction occurs when the surfaces of the two objects are in contact and resists the motion between them. It is caused by intermolecular interactions between the surfaces.
The force that causes the car to stop by opposing its motion is friction. Friction occurs between the tires of the car and the road surface, creating a force that resists the motion of the car, ultimately bringing it to a stop.
external conflict  noun1.struggle between a literary or dramatic character and an outside force such as nature or another character, which drives the dramatic action of the plot: external conflict between Macbeth and Macduff.2.struggle between a person and an outside force: external conflict between parents and children.
Friction is the opposing force that resists motion when two surfaces come in contact. It occurs due to the interactions between molecules on the surfaces of the objects.
The opposing force in this situation is gravity pulling the magazine downward.
The force that pulls an unbalanced object with an opposing force is gravity. Gravity pulls objects towards the center of the Earth, and if there is an opposing force such as friction or air resistance, the object will move in the direction determined by the net force acting on it.