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A 180 pound person dives off of a 30 foot cliff. What is their velocity as they enter the water?

A 13 m/s
Explaination
In this situation, potential energy equals the final kinetic energy: PE = KE. After converting feet to meters, solving for v (velocity) give us an answer of 13 m/s.
B 588 m/s
C 178 m/s
D 24 m/s