Difference between revisions of "Conservation of momentum"

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imported>Jake Gaylor
imported>David E. Volk
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'''Momentum is always conserved.'''  The momenta of individual objects in a system may vary, but the vector sum of all the momenta will not change.  Therefore, momentum is said to be conserved.
'''Momentum is always conserved.'''  The momenta of individual objects in a system may vary, but the vector sum of all the momenta will not change.  Therefore, momentum is said to be conserved.


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The conservation of momentum in a collision between two objects where the two objects become one is expressed as <math> \left(M_\mathrm{1}V_\mathrm{1i}\right) + \left(M_\mathrm{2}V_\mathrm{2i}\right) = \left(M_\mathrm{1} + M_\mathrm{2}\right)V_\mathrm{f}</math>
The conservation of momentum in a collision between two objects where the two objects become one is expressed as <math> \left(M_\mathrm{1}V_\mathrm{1i}\right) + \left(M_\mathrm{2}V_\mathrm{2i}\right) = \left(M_\mathrm{1} + M_\mathrm{2}\right)V_\mathrm{f}</math>
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Momentum is always conserved. The momenta of individual objects in a system may vary, but the vector sum of all the momenta will not change. Therefore, momentum is said to be conserved.

The conservation of momentum in a glancing collision between two objects is expressed as


The conservation of momentum in a collision between two objects where the two objects become one is expressed as