where it has a mass of 390000 N
that is a typo
should be
where it has a WEIGHT of 390000 N
m g = w
9000 g = 390,000
g = 390/9 = 43.3 m/s^2
A space ship has a mass of 9000kg. the space ship is launched from Earth and lands on a distant planet where it has a mass of 390000 N. What is the acceleration of the gravity on this planet?
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