a brick falls off scaffold at height of 80 m above the ground it velocity AfTeR FalLInG for 2 s Is 19;6 what iS IT MAgnitudE WheN IT HITS The GRound?

Answer 1

V^2 = Vo^2 + 2g*h.
Vo = 0, g = 9.8 m/s^2, h = 80 m.
V = ?.