A wrench falls out of the gondola of a balloon that is 520 m above the ocean.

Question

Assuming negligible air resistance, what was the wrench’s speed as it hit the water? The acceleration of gravity is 9.8 m/s2 .

Answer 1

vf^2=2gh solve for Vf

Answer 2

vf^2=2*9.8*520

vf=100.955 ??