posted by Sammeh .
two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)
You have only provided one bit of information, but there are two independent or unspecified variables: the height of the cliff and the delay between the times of release. Without more information, there is no unique solution. There may be an infinite number of possible solutions.