# physics

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A diver steps off a cliff and dives from 40 meters into the ocean. How long will he fall before he hits the water?

• physics -

h = Vo*t + 0.5g*t^2 = 40 m.
0 + 4.9t^2 = 40
t^2 = 8.16
t = 2.86 s.

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