Problem A8:
An infinitely thin uniformly charged rod lies on the x-axis as shown above.
The rod has a linear charge density lambda, a length of n_{2}d and is held fixed in
space. The left end of the rod
is located a distance n_{1}d from the origin. A small point object of mass m and charge q is
placed at the origin and released from rest. What is n_{3} in the expression for v^{2},
which is the square of the point object's speed at infinity?

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