Question

Свойство тел сохранять состояние покоя или равномерного прямолинейного движения, пока какая-нибудь внешняя сила не изменит этого состояния?

Answer 1

Это движение по инерции,то есть без действия на тело внешних сил.

Answer 2

Conservation of Momentum and Newton's First Law

The property of an object to maintain its state of rest or uniform straight-line motion unless acted upon by an external force is known as Newton's first law of motion. This principle is also referred to as the law of inertia. According to this law, an object will remain at rest or continue to move at a constant velocity unless a net external force acts on it.

Inertia and External Forces

Inertia is the resistance of any physical object to any change in its state of motion. This includes changes to the object's speed, direction, or state of rest. When no external force is applied, an object will maintain its current state of motion due to its inertia. However, if an external force is applied, it will cause a change in the object's state of motion.

Application of Newton's First Law

Newton's first law of motion is applicable in various scenarios. For instance, when a car suddenly stops, the passengers inside the car tend to continue moving forward due to their inertia. Similarly, when a moving bus suddenly accelerates, the passengers inside the bus tend to move backward due to their inertia. These examples demonstrate the application of Newton's first law in everyday situations.

Conclusion

In summary, Newton's first law of motion, also known as the law of inertia, explains the concept of an object's ability to maintain its state of rest or uniform motion unless acted upon by an external force. This fundamental principle forms the basis of classical mechanics and has wide-ranging applications in understanding the behavior of objects in various physical scenarios