A 180-pound person dives off of a 30-foot cliff. What is their velocity as they enter the water?
13 m/s
588 m/s
178 m/s
24 m/s
Detailed Explanation
In this situation, potential energy equals the final kinetic energy: PE = KE. After converting feet to meters, solving for v (velocity) gives us an answer of 13 m/s.
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