What principle states that for every action, there is an equal and opposite reaction?
Category: Science · Difficulty: hard
Hint: Think of how rockets propel themselves into space.
Answer
Newton's Third Law
Explanation
Newton's Third Law of Motion asserts that forces always occur in pairs, with one force acting in one direction and an equal force acting in the opposite direction.
This is a hard science riddle — a tricky one that takes a little thought. The answer is Newton's Third Law.
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