why is momentum conserved while energy is lost?

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why is momentum conserved while energy is lost?

In collision; why is momentum conserved while energy is lost? yet we use the same values for mass and velocity

2007-04-04 12:50:44 · 2 answers · asked by ashenafis 1 in Science & Mathematics ➔ Physics

Sorry guys for the wrong idea, but i meant, why is that momentum remains the same while energy changes. Is it possible to explain in theory.

2007-04-04 18:57:15 · update #1

2 answers

That is not always true. Energy is also conserved in elastic collisions. In collisions in which energy is lost, it's not destroyed, it's converted to heat, noise, bending fenders, etc.

Regardless, momentum is conserved.

2007-04-04 13:08:29 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋

energy is never lost it is just converted into heat and sound among other things

2007-04-04 20:18:09 · answer #2 · answered by M&M 3 · 0⤊ 0⤋