The minimum velocity v with which charge q should be projected so that it manages to reach the centre of the ring starting from the position shown in figure is

Question

The minimum velocity v with which charge q should be projected so that it manages to reach the centre of the ring starting from the position shown in figure is, v = k Q q m R 2 - 2, v = k Q q 2 m R 2 - 2, v = k Q q m R, v = k Q q 2 m R 1 - 2

MARKS App · Accepted Answer

U i + K i = U f + K f k Q q 2 R + 1 2 m v 2 = k Q q R + O 1 2 m v 2 = k Q q R 1 - 1 2 v = 2 k Q q m R 1 - 1 2 v = k Q q m R 2 - 2

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