Fall from flying airplane

An airplane is flying horizontally at a height of 500 m 500 \text{ m} above the ground at a speed of 100 m/s. 100 \text{ m/s}. If an object falls freely from the airplane, what is the magnitude of the speed of the object at the moment it touchs the ground?

Gravitational acceleration is g=10 m/s2. g = 10 \text{ m/s}^{2}.

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