kõvakeha

Kõvakeha is an Estonian term that translates to "solid body" or "hard body" in English. It refers to a physical object that possesses a definite shape and volume, and whose constituent particles are held in fixed positions relative to each other. This means that a kõvakeha resists deformation under external forces, or at least deforms very little. In physics, the concept of a kõvakeha is an idealization used to simplify the analysis of motion and forces. Real-world objects are never perfectly rigid and will always deform to some extent when subjected to stress. However, for many practical purposes, treating an object as a kõvakeha provides a very accurate approximation. The study of the behavior of kõvakehad is a fundamental part of classical mechanics, particularly in the fields of statics and dynamics. Key properties associated with kõvakehad include mass, inertia, and momentum. The motion of a kõvakeha can be described by the translation of its center of mass and its rotation about that center. Understanding the principles of kõvakeha mechanics is crucial for designing structures, machines, and analyzing the motion of celestial bodies.