if there is an attraction force b\w all objects,why don' we feel attracted towarda massive buildings?

Answer 1

You do Einstein.

Answer 2

There is a gravitational attractive force between all objects with mass in the universe (this includes people and buildings).
However, the attractive force is proportional to the masses of the objects and inversely proportional to the square of the distance between them. In other words, with a very small mass, or a large distance in between, the attractive force will be small.

The equation for the gravitational attractive force between two masses is,
F = G * M * m / R^2
Where G is the gravitational constant (= 6.673 E-11), M is the mass of one object, m is the mass of the other object, and R is the distance between each objects center of mass.

Compared to the mass of the Earth, Sun, or any of the other celestial bodies which exert such a noticeable gravitational force on other objects, the mass of a single person is extraordinarily small, as is a building. The resulting gravitational force is very, very small, especially taking into account the proportionality constant in the equation, the Universal Gravitational Constant.

Try plugging in a few numbers into the equation. You will see that for most any every day object, the resulting gravitational force is incredibly small. In order to get a value of appreciable magnitude, you need at lease one object on the scale of a planet or moon.
Try plugging in the values for the mass of Earth and the Earth's radius and see what you get,
http://www.physlink.com/Reference/AstroPhysical.cfm

Answer 3

We are attracted, but it is so small a pull, we can't feel it.

Hypothetically, if the same building were out in space and you were out in space relatively close to it say 500 feet, most likely it would take a long long time, but you would eventually be pulled toward it. But it would be so small a pull, if you even bumped against the building a slight bit, you would be off drifting in space away from the building.

It is a proportion thing you see. The earth is massive enough that the gravitational pull keeps us held down. And the same gravitation keeps the building held down. But there just isn't enough mass to the building for us to physically feel the pull here.

Answer 4

It looks like you are succumbing to a common misconception.

First, there is indeed an attractive force (called gravitation) between all objects/bodies.

We are attracted to massive buildings and like collections of mass.

Here's where the misconception comes in. Gravitation is an EXTREMELY EXTREMELY weak force. Consider, against the full force of the Earth's gravitation, our puny muscles allow us to do many things which would be impossible if gravity were not so feeble: we can stand up, we can walk upstairs, we can throw a ball, we can pump blood "uphill" to our brains, making life possible, and so on.

That's the reason we don't feel attracted to buildings and the like.

Answer 5

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Answer 6

because of the mass vs size.

inside is almost hollow. ie. rooms, bathrooms, storage rooms.