Forces in Physics

In physics, force is an interaction in the form of a push or pull that causes an object with mass to change its motion or shape.

It is a fundamental concept in mechanics to explain changes in an object's velocity or direction. Definition of Force Force is defined as a vector that has magnitude, direction, and a starting point, according to Newton's Laws. When two objects interact, forces of equal magnitude but opposite direction arise on each object.

Fundamental Forces There are four fundamental forces: gravity (between masses), electromagnetic (between electric charges), strong nuclear (binding nuclei), and weak nuclear (radioactive decay).

General Types of Forces Gravitational force: The attraction between objects with mass, such as the Earth pulling on a falling apple.

Normal force:
The reaction of a surface to an object above it, perpendicular to the surface. Frictional force: Resists relative motion between contacting surfaces. Tension force: The pull of a rope or cable at its end.

Spring force:
Returns an object to its equilibrium position, according to Hooke's Law. Internal Forces in Structures In engineering mechanics, internal forces arise from external forces, divided into normal (parallel to the axis), transverse (perpendicular to the axis), and moments (bending)

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