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## Homework Statement

Calculate the percentage increase in the mass of an apollo rocket as it escapes from the Earth's gravity at 11.2 kps

## Homework Equations

11.2 kps = 11, 200 m/s

E= mc^2

mv= mo/ sqrt (1- v^2/c^2)

mv= mass of the object relative to stationary frame

mo= proper mass

v= velocity of the object

## The Attempt at a Solution

No idea how to do this