The
Escape Velocity
From A Star Is Given By This Equation :
Where,
Now we have to determine the
Escape Velocity (in km/s)
from a star which has an
enormous
Mass
of
but a
Radius
of only
Clue:
Plug the Mass and Radius in the Equation above. Don't forget to convert from
kilometer
to
meter
and vice versa!
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Given, Mass, M = 6 × 1 0 3 0 k g Radius, R = 5 . 0 0 4 7 5 k m = 5 0 0 4 . 7 5 m Then, v e = 5 0 0 4 . 7 5 2 × 6 . 6 7 3 × 1 0 − 1 1 × 6 × 1 0 3 0 m s − 1 = 4 0 0 0 0 0 0 0 0 m s − 1 = 4 0 0 0 0 0 k m s − 1
And you did it!