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Question American English Answer American English
Newton law 3
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for every action there is an opposite and equal reaction.
Newton law 2
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rate of change in momentum is directly propotional to the force applied
Newton law 1
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An object stays in motion or at rest unless acted upon an external unbalanced force
law of conservation of momentum
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for a closed system (no external force), no total (sum) momenta of the sysytem is conserved (remains the same)

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