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zhillyz
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Homework Statement
A particle of rest mass [itex]m_0[/itex] and kinetic energy [itex]2m_0c^2[/itex] and sticks to a stationary particle with rest mass [itex]2m_0[/itex]. Find the rest mass of the composite particle.
Homework Equations
Conservation of momentum and thus energy.
[itex] E_{bef} = E_r + E_k = E_{aft}[/itex] where Er is energy of rest particle
The Attempt at a Solution
[itex]E = m_{01}c^2 + mv\gamma + m_oc^2 = m_{02}c^2[/itex]. The first half of the equation there is a kinetic part and a part at rest, the second half is only at rest.
I am thinking I am supposed to be substituting the questions given data into this equation and cancelling expressions but i am not sure how to proceed.