Two charged particles having charges 1 a...

Two charged particles having charges `1 and -1 mu C` and of mass `50 g` each are held at rest while their separation is `2 m`. Now the charges are released. Find the speed of the particles when their separation is `1 m`.

`(1)/(5) m//s`

`(3)/(5)m//s`

`(3)/(10)m//s`

`(2)/(7)m//s`

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