How does a spacecraft leave the surface of the Earth?
The spacecraft produced an upward force of thrust that was equal to the downward force of gravity.
The spacecraft produced an upward force of thrust that was greater than the downward force of gravity.
The spacecraft produced a downward force of thrust that was equal to the downward force of gravity.
The spacecraft produced a downward force of thrust that was less than the downward force of gravity.
The correct answer is: The spacecraft produced an upward force of thrust that was greater than the downward force of gravity.
In order for a spacecraft to leave the surface of the Earth, it must overcome the force of gravity pulling it downward. This is achieved by producing a greater upward force of thrust that counteracts and surpasses the force of gravity. By generating enough thrust, the spacecraft can lift off and overcome Earth's gravitational pull, allowing it to enter space.