Newtons Third Law

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Abdul Muntakim Rafi
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Newtons Third Law

Unread post by Abdul Muntakim Rafi » Fri May 06, 2011 7:47 pm

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.

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Rafi
Man himself is the master of his fate...

tanvirab
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Re: Newtons Third Law

Unread post by tanvirab » Thu May 12, 2011 7:17 am

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.

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leonardo shawon
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Re: Newtons Third Law

Unread post by leonardo shawon » Tue Jul 19, 2011 12:51 am

if u want a good experience of the third law then PUNCH on a wall :P
Ibtehaz Shawon
BRAC University.

long way to go .....

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nayel
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Re: Newtons Third Law

Unread post by nayel » Tue Jul 19, 2011 1:54 pm

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

raihan khan
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Re: Newtons Third Law

Unread post by raihan khan » Thu Aug 11, 2011 6:10 pm

then shouldn't we use axioms or postulates instead of law. isn't it confusing.

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nayel
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Re: Newtons Third Law

Unread post by nayel » Thu Aug 11, 2011 7:45 pm

"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

qeemat
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Re: Newtons Third Law

Unread post by qeemat » Fri Feb 17, 2012 4:31 pm

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"

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nayel
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Re: Newtons Third Law

Unread post by nayel » Sun Feb 19, 2012 10:27 pm

Who asked for a statement of Newton's third law?
"Everything should be made as simple as possible, but not simpler." - Albert Einstein

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