A balloon rises from rest with a constant acceleration 
. A stone is released from it when it has risen to height h. The time taken by the stone to reach the ground is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
The velocity of balloon at height h, 
When the stone released from this balloon, it will go upward with velocity v = 
(Same as that of balloon). In this condition time taken by stone to reach the ground
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