A body is thrown vertically upwards from the top 
of tower. It reaches the ground in 
.
If it is thrown vertically downwards from 
with the same speed it reaches the ground in 
. If it is allowed to fall freely from 
, then the time it takes to reach the ground is given by
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Taking downward direction as the positive direction.
Multiplying Eq. (i) by 
and Eq. (ii) by 
and adding, we get
For free fall from rest, 
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