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Problem
Problem
From an elevated point
A
A
A
, a stone is projected vertically upwards. When the stone reaches a distance
h
h
h
below
A
A
A
, its velocity is double of what it was at a height
h
h
h
above
A
A
A
. Show that the greatest height attained by the stone is
5
3
h
\frac{5}{3}h
3
5
h
.
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