How Fast to Push q2 to Infinity?

[Mike_ Howard927]

Two charges, q1=-9.4 μC and q2=1.2 nC with masses m1=13.4 gram and m2=2.7 gram were
located 8.5 cm from each other. Charge q1 is held in place.

We wish to push the 2nd charge q2 as far from the 1st charge as possible.

With what initial velocity should charge q2 be pushed to send it all the way to infinity?

 

[Dale]

Hi Mike, welcome to PF!

I have moved your question to the homework forums, but before we can help we need you to list any relevant equations and show your attempt at a solution (even if you know it is wrong)