GENERAL KNOWLEDGE

Detailed explanation-1: -Both objects exert an equal attractive force on each other: a falling object is attracting the Earth with the same size force as the Earth is attracting it. The vast difference in mass between the Earth and the falling object means the Earth’s movement is imperceptibly small.

Detailed explanation-2: -10. Yes, you pull upward with the same amount of force on Earth. 11. The different accelerations are due to different masses.

Detailed explanation-3: -On Earth, gravity pulls all objects “downward” toward the center of the planet. According to Sir Isaac Newton’s Universal Law of Gravitation, the gravitational attraction between two bodies is stronger when the masses of the objects are greater and closer together.

Detailed explanation-4: -Since there is also an equal force on the Earth, it starts to accelerate towards you. However the effect of these two forces on you and on the Earth are rather different and this is due to the relative difference in the mass of you compared to the Earth.

Detailed explanation-5: -You are held down to the Earth’s surface because it has a strong gravitational force. You actually exert a gravitational force on the Earth, but because your mass is many times smaller than the Earth’s mass, your pull is much less than the Earth’s.