Question

multiple choice question
when you jump into the air, you push off the ground which is to say you exert a force on the earth. why doesnt the earth move?
○ the earth does move, its just that you dont notice it because you move more.
○ the mass of the earth is so enormous that the acceleration it experiences is minuscule.
○ you arent actually pushing on the earth but rather the earth is pushing you and thats why you move.
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Explanation:

Newton's third law states that when you exert a force on the Earth, the Earth exerts an equal and opposite force on you. Using Newton's second law ($a=\frac{F}{m}$), acceleration is inversely proportional to mass. The Earth's mass is extremely large, so its acceleration from the force of your jump is too small to observe.

Answer:

B. The mass of the Earth is so enormous that the acceleration it experiences is minuscule.
A. The Earth does move, it's just that you don't notice it because you move more.