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A stone is dropped from a balloon at an altitude of '300 m'. How ling will the stone take to reach the ground of (a) the balloon is ascending with a velocity of ' 5 ',ms^(-1). (b) the balloon is descending with a velocity of ' 5 ms^(-1)' (c ) the balloon is stationary ?

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The correct Answer is:
(i) 8 . 36 s (ii) 7 . 33 s (iii) 7 . 8 2s
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