Physics, 01.06.2021 23:20, lerasteidl

Escape velocity is (vescape = 2 G Msun /Rsun) of 620 km/s to leave from the Sun’s surface. When the Sun becomes a red giant, what will the escape velocity be when it is 50 times larger, with a mass of only 90% what it has today?
What will the escape velocity be when the Sun becomes an AGB star with a radius 200 times greater and a mass only 70% of today?
Thanks.

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Escape velocity is (vescape = 2 G Msun /Rsun) of 620 km/s to leave from the Sun’s surface. When the...