Newtons laws

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Newton's first law of motion[edit]

If no external force acts on a particle, then it is possible to select a set of reference frames, called inertial reference frames, observed from which the particle moves without any change in velocity.

In Latin[edit]

Lex I: Corpus omne perseverare in statu suo quiescendi vel movendi uniformiter in directum, nisi quatenus a viribus impressis cogitur statum illum mutare. Principia Mathematica.

Newton's second law of motion[edit]

Where is the force, is the mass and is the acceleration. This law has been found to be true for accelerations as small as (Ref. 2)

In Latin[edit]

Lex II: Mutationem motus proportionalem esse vi motrici impressae, et fieri secundum lineam rectam qua vis illa imprimitur. Principia Mathematica.

Interesting reading[edit]

References[edit]

Newton's third law of motion[edit]

Whenever A exerts a force on B, B simultaneously exerts a force on A with the same magnitude in the opposite direction.

In Latin[edit]

Lex III: Actioni contrariam semper et æqualem esse reactionem: sive corporum duorum actiones in se mutuo semper esse æquales et in partes contrarias dirigi. Principia Mathematica.
Interesting reading