(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Particle 1 has initial velocity v, directed to the right, and particle 2 is initially stationary.

Let the mass of particle 1 be m and the mass of particle 2 be 3m. If the collision is perfectly inelastic, what are the velocities of the two particles after the collision?

2. Relevant equations

[tex]m_{}1[/tex][tex]v_{}1[/tex] + [tex]m_{}2[/tex][tex]v_{}2[/tex]= ([tex]m_{}1[/tex]+[tex]m_{}2[/tex])v

3. The attempt at a solution

[tex]m_{}1[/tex][tex]v_{}1[/tex] = (m + 3m)v

[tex]v_{}1[/tex] = ((4m)v)/m

so I get [tex]v_{}1[/tex] and ][tex]v_{}2[/tex] (since they are stuck together) to be 4v, but it says I'm off by a multiplative factor. Any ideas?

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# Homework Help: Elastic/Elastic Collisions

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