Physics-
General
Easy
Question
A ball thrown upward from the top of a tower with speed 
reaches the ground in 
second. If this ball is thrown downward from the top of he same tower with speed it reaches the ground in 
second. In what time the ball shall reach the ground if it is allowed to falls freely under gravity from the top of the tower?
The correct answer is:
or 
(i)
or 
(ii)
or 
For falls under gravity from the top of the tower
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