As a 10-Kg Ball Falls to the Ground, Its Potential and Kinetic

Multiple Choice

As a 1.0-kg ball falls to the ground, its potential and kinetic energies are the same when the ball is 3.0 m above the ground. How fast is the ball moving just before the impact with the ground?

A) 0 m/s
B) 7.7 m/s
C) 11 m/s
D) 59 m/s
E) 1.2 * 10² m/s