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Lets say I have a moving object that has speed [itex] v_1 [/itex]
and mass [itex] m_1 [/itex] and it collides with a more massive object of
mass [itex] m_2 [/itex] And this mass is at rest and when they collide they stick together.
If I use momentum conservation I would get
[itex] m_1 v_1=(m_1+m_2)(v_2)[/itex] and [itex] v_2 [/itex] is the speed after the collision
but what if I wanted to analyze this from the rest frame of [itex] m_1 [/itex]
It would look as if the more massive object was moving at me at a speed [itex] v_1 [/itex]
So now I would have [itex] m_2(-v_1)=(m_1+m_2)(v_2) [/itex] the final speeds would be different in those 2 cases so what's wrong with my reasoning.
and mass [itex] m_1 [/itex] and it collides with a more massive object of
mass [itex] m_2 [/itex] And this mass is at rest and when they collide they stick together.
If I use momentum conservation I would get
[itex] m_1 v_1=(m_1+m_2)(v_2)[/itex] and [itex] v_2 [/itex] is the speed after the collision
but what if I wanted to analyze this from the rest frame of [itex] m_1 [/itex]
It would look as if the more massive object was moving at me at a speed [itex] v_1 [/itex]
So now I would have [itex] m_2(-v_1)=(m_1+m_2)(v_2) [/itex] the final speeds would be different in those 2 cases so what's wrong with my reasoning.