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A particles is fired vertically from the surface of the earth with a velocity `Kv_(e)` , where `u_(e)` is the escape velcocity ans `Klt 1`. Neglecting air resistance , calcualte the heightto which it will rise from the surface of the earth .(R= radius of the earth ).

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The correct Answer is:
`(k^(2)R)/(1-K^(2))`
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