Question 489578: a stone is dropped from the top of the tower and travels 24.5m in the last second of its journy .what is the height of the tower. Answer by Jo8(1) (Show Source):
You can put this solution on YOUR website! y = Vf^2 - Vi^2/ -2g
y = 24.5^2 - 0 / -2(9.8)
y = 600.25/-19.6
y = -30.625
the negative sign tells only the direction which is downward , so we can disregard it and the height of the tower is 30.625
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