The four 2.23 g spheres shown below have q+ve=15.0 nC and d=3.28 cm. The spheres are released simultaneously and allowed to move away from each other. What is the speed of each sphere when they are very far apart?
The Attempt at a Solution
1. 2U=k(q^2)/d (potential energy between particles along d)
2. U=k(q^2)/√(2(d^2) (potential energy of the particles across form each other)
3.U(total)=2mv^2 (assuming the particles would have the same velocity)
i then solved for velocity but i didn't get the right answer
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