قانون نيوتن الاول. قوانين نيوتن للحركة

Cambridge UK: Cambridge University Press ] Consequently, the mass of the system can not change during the time of interest
"On the use and abuse of Newton's second law for variable mass problems"

When the mass varies due to accretion or ablation, [an alternate equation explicitly accounting for the changing mass] should be used.

قانون نيوتن الأول للحركة
Cambridge UK: Cambridge University Press
قوانين نيوتن الأول والثاني والثالث
Any single force is only one aspect of a mutual interaction between two bodies
قانون نيوتن الأول
Hannah, J, Hillier, M J, Applied Mechanics, p221, Pitman Paperbacks, 1971• I Bernard Cohen Peter M
Metaphysics Research Lab, Stanford University I]t is essential to deal with the same set of particles throughout the time interval[
Quoting Newton in the Principia: It is not one action by which the Sun attracts Jupiter, and another by which Jupiter attracts the Sun; but it is one action by which the Sun and Jupiter mutually endeavour to come nearer together Celestial Mechanics and Dynamical Astronomy

.

13 أمثلة على قانون نيوتن الأول في الحياة الواقعية
ما هو قانون نيوتن الأول
قانون نيوتن الأول والثاني