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Consider a satellite at an altitude of 700 km above Earth, with its velocity perpendicular to...

Consider a satellite at an altitude of 700 km above Earth, with its velocity perpendicular to the direction to Earth. If the satellite would have a velocity that is 0.2 km/s larger than the local escape velocity, what would the excess velocity V∞ be?

The answer was 2.07 km/s.

I would like to know the detailed steps to reach that answer

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