How does a spacecraft leave the surface of the Earth?
Responses
A The spacecraft produced a downward force of thrust that was equal to the downward force of gravity.
B The spacecraft produced a downward force of thrust that was less than the downward force of gravity.
C The spacecraft produced an upward force of thrust that was greater than the downward force of gravity.
D The spacecraft produced an upward force of thrust that was equal to the downward force of gravity.