1) the earths gravity is pulling on you, are you pulling on the earth explain your reasoning with evidence.

2) gravity is a force of attraction between objects based on their mass and their distance apart. why aren’t other objects, like your pencil, being pulled towards you? explain your reasoning

gravity is a force of attraction between objects based on their mass and their distance apart. why aren’t other objects, like your pencil, being pulled towards you? explain your reasoning

These are two questions and two answers.

Question 1) The earths gravity is pulling on you, Are you pulling on the Earth Explain your reasoning with evidence.

Yes, you are pulling on Earth.

Reasoning.

Third Newton's law of motion, action and reaction law, sates that for every action force, there is an equal (in magnitude) and opposite reaction force.

While the action force acts on one object, the reaction force acts on another the object: the object that exerts the action force feels the reaction force.

Which force is considered the action and which the reaction is totally irrelevant, they are equal in magnitude and opposite in direction.

So, consider the earths gravity's pulling on you the action force, as per Newtons's third law, you are pulling on the Earth with an equal force, which is the reaction force.

You cannot find evidence on that you are pulling the Earth due to two reasons: i) because the mass of the Earth is so big that the acceleration caused by your pulling force is neglictble, and ii) because at the same time there are so many similar forces (from the millions of people living in different parts in the planet) acting in different directions, that the net force of these forces is zero.

Nevertheless, there is another pulling force acting of the Earth which gives you evidence: it iis the attraction of the Sun. The pulling of the Sun on the Earth is what causes the almost circular orbit of the Earth around the Sun. Sun and Earth form a pair of action and reaction forces, such as you and the Earth form another pair of action reaction forces.

Question 2) Gravity is a force of attraction between objects based on their mass and their distance apart. Why aren’t other objects, like your pencil, being pulled towards you?

You exert a gravity pull on every object, including your pencil. Nevertheless, the product of your masses (yours and pencil's) is too small to show an effect.

The universal gravitational law states:

F = G m₁ m₂ / d².

Where G is the universal constant and its value is 6.67 10 ⁻¹¹ N . m²/s².

It is so small that it is only important when the masses are really big, which is not the case of yours and most object's around you. Even at very short distances the pulling forces are not important for objects that are not big like planets or stars.

answer is slate

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