A stone is dropped from a height h. Simultaneously another stone is thrown up from the ground with such a velocity that it can reach a height of 4h. The time when two stones cross each other is sqrt(((h)/(kg))) where k is

A stone is dropped from a height h. Simultaneously another stone is th

1.	A stone is dropped from a height h. Simultaneously another stone is thrown up from the ground with such a velocity that it can reach a height of 4h. The time when two stones cross each other is sqrt(((h)/(kg))) where k is
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