Prove That Newton 2nd Law Is Real Law Of Motion

How to prove newton s first law of motion from newton s second law of motion this physics lesson will show you how you can prove newtons first 1st law of motion using second law of motion.

Prove that newton 2nd law is real law of motion.

Consider an isolated system of two bodies a and b. This is the newton s third law of motion for a body exerting some force on another. From this law f ma where f is force m is mass of object and a acceleration. An isolated system is such that no force acts on the system.

When we can show that newton s first and third law are contained in the second law then we can say that it is the real law of motion. To prove first first law we need to know both law of motion. P p 1 p 2 on differentiating both sides with respect to time we wiil get d t d p d t d p 1 d t d p 2. Derivation of 3 rd law.

Thus newton s 2 nd law of motion is the most basic law of motion. According to newton s second law of motion it means that there will be no acceleration in the body if no external force is applied. Which is newton s 1 st law of motion. This represents that a body at rest will remain at rest and a body in.

But do you know that the newton s second law is known as the real law of the motion. Follow report by nimranclarau 21 11 2015 log in to add a comment. Newton s first law if external force applied on an object is zero then if the. This is the newton s third law of motion for a body exerting some force on another.

P momentum of the whole system and p 1 and p 2 are the respective momentum of the particles. Which is newton s 1 st law of motion. Consider an isolated system of two bodies a and b. Thus newton s 2 nd law of motion is the most basic law of motion.

Newton s second law of motion describes that when a force is applied to an object it produces acceleration in the object i e rate of change of velocity. I first law is contained in second law. For an object at rest the applied force produces acceleration in the object and makes the object move in the direction of applied force. Let us take an isolated system that is system isolated or free from external forces.

Newton s third law from law of conservation of momentum result consider an isolated system consisting of two particles. Let us prove it by showing that the newton s first law is contained in the second law.