A small block having charge Q placed on a frictionless horizontal table is attached to one end of a spring of force constant k. The other end of the spring is attached to a fixed support and the spring stays horizontally in relaxed state. Another small block carrying a negative charge -q is brought very slowly from a great distance towards the former block along the line coinciding the axis of the spring. Find extension in the spring when both the blocks collide.

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Please see that both charges are unequal and also spring constant and electrostatic force constant cannot cancel each other..i ask this question to many teachers but no give me satisfactory solution

2. A small block having charge Q placed on a frictionless horizontal table
is attached to one end of a spring of force constant k. The other end of
the spring is attached to a fixed support and the spring stays
horizontally in relaxed state. Another small block carrying a negative
charge -ą is brought very slowly from a great distance towards the
former block along the line coinciding the axis of the spring. Find
extension in the spring when both the blocks collide.
Transcribed Image Text:2. A small block having charge Q placed on a frictionless horizontal table is attached to one end of a spring of force constant k. The other end of the spring is attached to a fixed support and the spring stays horizontally in relaxed state. Another small block carrying a negative charge -ą is brought very slowly from a great distance towards the former block along the line coinciding the axis of the spring. Find extension in the spring when both the blocks collide.
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