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A balloon starts rising from ground from...

A balloon starts rising from ground from rest with an upward acceleration `2m//s^(2)`. Just after 1 s, a stone is dropped from it. The time taken by stone to strike the ground is nearly

A

0.3 s

B

0.7 s

C

1 s

D

1.4 s

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-MOTION IN A STRAIGHT LINE-ASSIGNMENT (SECTION - A)
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