Answer
The correct answer is:
(e) when it wants to speed up, slow down, or turn
Work Step by Step
The correct answer is:
(e) when it wants to speed up, slow down, or turn
Once it is far from any stars, there will be no external force acting on the probe. According to Newton's first law, an object in motion will continue moving at the same speed in the same direction. If the space probe wants to speed up, slow down, or turn, the space probe must fire its engines.
