Newtons Third Law
 Abdul Muntakim Rafi
 Posts: 173
 Joined: Tue Mar 29, 2011 10:07 pm
 Location: bangladesh,the earth,milkyway,local group.
Newtons Third Law
Dear Friends,
I want a proof of Newton's third law.Can u give me an easy proof?
Newton's 1st and 3rd law can be derived from the 2nd one.Then why we say Newton's three laws of motions?We should say Newton's law of motion.We should see them as one.
Best Wishes
Rafi
I want a proof of Newton's third law.Can u give me an easy proof?
Newton's 1st and 3rd law can be derived from the 2nd one.Then why we say Newton's three laws of motions?We should say Newton's law of motion.We should see them as one.
Best Wishes
Rafi
Man himself is the master of his fate...
Re: Newtons Third Law
The first and third law cannot be derived from the second law. The first law and third law are postulates; there is no proof or derivation for them, only experimental evidence. The second law is an experimental result.
 leonardo shawon
 Posts: 169
 Joined: Sat Jan 01, 2011 4:59 pm
 Location: Dhaka
Re: Newtons Third Law
if u want a good experience of the third law then PUNCH on a wall
Ibtehaz Shawon
BRAC University.
long way to go .....
BRAC University.
long way to go .....
Re: Newtons Third Law
In fact the first law postulates the existence of inertial frames in which the other laws are applicable.
"Everything should be made as simple as possible, but not simpler."  Albert Einstein

 Posts: 35
 Joined: Wed Mar 16, 2011 12:30 pm
 Location: Dhaka
Re: Newtons Third Law
then shouldn't we use axioms or postulates instead of law. isn't it confusing.
Re: Newtons Third Law
"Axiom" is mostly used in mathematics. In mathematics laws are proved from axioms. But in physics experimental results are called laws.
"Everything should be made as simple as possible, but not simpler."  Albert Einstein
Re: Newtons Third Law
Newton's 3rd law may be formally stated:
"Forces always occur in pairs. If object A exerts a force F on object B,
then object B exerts an equal and opposite force –F on object A"
or in slogan style:
"Every action has an equal and opposite reaction"
"Forces always occur in pairs. If object A exerts a force F on object B,
then object B exerts an equal and opposite force –F on object A"
or in slogan style:
"Every action has an equal and opposite reaction"
Re: Newtons Third Law
Who asked for a statement of Newton's third law?
"Everything should be made as simple as possible, but not simpler."  Albert Einstein