A ball is thrown vertically upwards with a velocity \( u \) w.r.t. ground from the balloon desce...

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A ball is thrown vertically upwards with a velocity \( u \) w.r.t. ground from the balloon descending with velocity \( v \). The ball will pass by the balloon after time.
(1) \( \frac{u-v}{2 g} \)
(2) \( \frac{u+v}{2 g} \)
(3) \( \frac{2(u-v)}{g} \)
(4) \( \frac{2(u+v)}{g} \)
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