## anonymous one year ago Two protons are released from rest when they are 0.750 nm apart. What is the maximum speed they will reach? I already know the answer but I don't understand how to derive the correct formula to use to get that answer please help guys

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1. IrishBoy123

$k\frac{q.q}{r_o} = 2(\frac{1}{2}m \dot r_{\infty}^2)$??

2. anonymous

how do you get that? @IrishBoy123

3. IrishBoy123

potential energy of the system is $$\large U = k\frac{q.q}{r}$$ when the protons are distance r apart, yes?