9. How does a spacecraft leave the surface of the Earth?

Question

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1 point
a The spacecraft produced an upward force of thrust that was equal to the downward force of gravity.
b The spacecraft produced an upward force of thrust that was greater than the downward force of gravity.
c The spacecraft produced a downward force of thrust that was equal to the downward force of gravity.
d The spacecraft produced a downward force of thrust that was less than the downward force of gravity.

Answer 1

b The spacecraft produced an upward force of thrust that was greater than the downward force of gravity.