TOPICS: DYNAMICS - TENSION FORCE

KEYWORDS

Definition of tension force as a tension force exerted by a flexible medium (cable, rope, etc.).
Understanding that tension force is a vector force, having magnitude and direction.
Identification of situations of mechanical equilibrium and disequilibrium involving tension forces.
Application of Newton's laws, especially the Second Law (F = m * a), to solve problems with tension force.
Analysis of systems with multiple pulleys and the distribution of tension force among them.

Second Law of Newton: F = m * a
Tension Force in a rope with one fixed end: T = m * a
Tension Force in a pulley system: depending on the system, it may be necessary to consider the division of tension among different segments of the rope.

Tension Force: Force exerted by a cable, rope, or chain when under tension, always directed along the flexible object.
Tension: Internal force that arises in a flexible object (like a rope) when it is stretched by the forces acting on its ends.
Dynamics: Branch of Physics that studies forces and their effects on the motion of bodies.
Second Law of Newton: Principle that establishes the relationship between the total force acting on an object, its mass, and its acceleration (F = m * a).
Mechanical Equilibrium: State in which a body is at rest or in uniform linear motion, resulting from the acting forces being in equilibrium.
Pulley System: Set of pulleys used to distribute tension force and facilitate lifting loads or changing the direction of the applied force.

Tension force is an example of a contact force, acting at the ends of stretched ropes or cables.
Tension force is represented as a vector pointing in the direction of the cable, rope, or element under tension.
The mechanical equilibrium of a system is analyzed considering all acting forces, including tension forces.
The analysis of a pulley system requires consideration of how tension force is distributed among the different sections of the rope.

Tension Force and Tension: Both refer to the same physical quantity, but tension is the internal force and tension force is the result of this tension transmitted along the rope.
Second Law of Newton: It is fundamental in understanding how to calculate tension force, as it relates the resultant force acting on the system to the body's mass and its resultant acceleration.
Mechanical Equilibrium: The analysis of forces in a system where tension force is present allows determining whether the system is in equilibrium or not.
Pulley Systems: Tension force can be altered and distributed through a pulley system, often simplifying the effort required to move or sustain a load.

Calculating Tension Force in a Rope with One Fixed End: If a rope has one of its ends fixed and the other is connected to an accelerating object, the tension force is equal to the force needed to accelerate the object (T = m * a).
Analysis of a Pulley System: In a pulley system, tension force can be distributed among different sections of the rope, causing the force required to lift a load to be different from the tension force in the rope.
- Example: If we have a system with two pulleys and a load, the tension in the rope can be equally divided between the parts supporting the load, resulting in a tension force that is half the weight of the load in each section of the rope.

Tension force is the force exerted by a flexible medium (cable, rope, chain) under tension, acting in the direction of the medium's length.
Tension is the internal force of an object when stretched, being transmitted by the ends in the form of tension force.
Second Law of Newton is essential to calculate tension force, establishing that F = m * a, where F is the resultant force, m is the object's mass, and a is its acceleration.
In a state of mechanical equilibrium, tension force is counterbalanced by other forces, keeping the system static or in uniform motion.
Pulley systems modify the distribution of tension force, allowing the alteration of the applied force's direction and facilitating the movement of loads.

Tension force is always directed along the rope/cable and has a magnitude equal to the force needed to maintain a system in equilibrium or produce acceleration.
In pulley systems, tension force can be divided, reducing the amount of force that needs to be manually applied.
Correctly calculating tension force requires understanding the distribution of forces in a system and how they affect each segment of the medium (rope, cable, etc.) under tension.
To solve problems involving tension force, it is necessary to apply the principles of dynamics and classical mechanics, especially Newton's laws.