I know those are the answers because my teacher gave us the answers prior to the assignment, just so it might guide us to figure out how to actually solve this impossible problem.
"Throw Up" Problem without given velocity or time
Homework Statement
A stone is thrown straight upward from the edge of a bridge so it passes the bridge on the way down and falls in the river 63.3m below. The stone strikes the water 2.20s after it passes the bridge. Calculate
a) the speed...