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773009.  Fri Jan 07, 2011 7:05 am Reply with quote

The universal of any physical object to change its state of motion or when the object is in rest. Aristotle who suspected that the absence of an external motive power, all objects the absence of an external motive power, all objects would come to rest and that moving objects only continue to move so long as there is a power inducing them to do so.

Sir Issac Newton clarified inertia in his work, definition 3 of his 'Philosophić Naturalis Principia Mathematica' in which he state and I quote ''The vis insita, or innate force of matter, is a power of resisting by which every body, as much as in it lies, endeavours to preserve its present state, whether it be of rest or of moving uniformly forward in a straight line.'' Sir Issac Newton further went on to define inertia in his First Law of Motion. Another term for inertia which also can be used is momentum.
However on Earth inertia is often masked by gravity or friction, these inturn decrease the speed of an object in motion.

773045.  Fri Jan 07, 2011 8:50 am Reply with quote

Momentum is the term more commonly used in science for this property, it is a vector quantity and it is the product of a bodies mass and velocity.

775334.  Fri Jan 14, 2011 8:01 am Reply with quote

Thank you for the correction


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