The body was launched from the Earth vertically upward at the second cosmic speed. when will it come back?

For each celestial body, its own second cosmic velocity is calculated.
By definition, the second cosmic speed is such a speed, after acceleration to which the body overcomes the gravitational attraction of the celestial body and continues to move independently. It never comes back. For the Earth, this speed is 11.2 km / s.
The answer is never.

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