Question 1160718
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Time to move up, up to the maximum height, is  {{{5/9.81}}} seconds = {{{5/10}}} = 0.5 seconds, approximately.


So, after 0.5 s + 0.5 s = 1 second, the ball will return to the original height/level, moving down,


and what will happen after that, depends on the level of the starting point.


Since the problem is silent about it, it is a <U>provocative problem</U>.
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