A point charge ` +q` & mass ` 100 gm` experiences a force of ` 100N` at a point of distance ` 20 cm` from a long infinite uniformly charged wire , If
A point charge ` +q` & mass ` 100 gm` experiences a force of ` 100N` at a point of distance ` 20 cm` from a long infinite uniformly charged wire , If it is released find its speed when it is at a distance ` 40` cm from wire .
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