law of action and reaction

• مبدأ أساسي في الفيزياء يُعرف بقانون نيوتن الثالث، وينص على أن لكل فعل رد فعل مساوٍ له في المقدار ومضاد له في الاتجاه. ويُستخدم مجازًا للدلالة على أن لكل سبب نتيجة تقابله.

A fundamental principle in physics, often associated with Newton's third law, stating that for every action there is an equal and opposite reaction. In a broader sense, it refers to the idea that every cause has a corresponding effect.

1. Newton's Third LawB2formal

   A fundamental principle of physics stating that for every action (force) there is an equal and opposite reaction.

   قانون الفعل ورد الفعل

   • When you push against a wall, the wall pushes back with an equal force, demonstrating the law of action and reaction.
   • A rocket's engines push exhaust gases downward, and the gases push the rocket upward, following the law of action and reaction.
   • When a swimmer pushes water backward, the water pushes the swimmer forward, which is a practical example of this law.