What does gravity depend on?

Question

Everything that exsists has a form of attracktion. The bigger, the more? Or do other factors play a role?
If I'd construct something huge and complex in space, would I stick to it?
And if, what's the minimum sice to keep a person's feet on the ground?

Answer 1

MASS!!

Mass influences gravity or gravitational force, NOT size.

Gravity depends on the masses of the objects and their separation. The formula is

F = G*m1*m2/r²

m1,m2 are the masses of the 2 bodies and r is the distance of separaion.

So an object can be 'biiiiiig' but if is mass is less due to lower density gravitational attraction exeted by it will be less.

There is nothing as minimum size to keep a person's feet on the ground since if the astronomical object that u construct have low escape velocity, a slight force exerted by the man will make him ESCAPE the gravity of the object.

So this 'size' is relative for various people and depends upon their capability to exert force.
Even on moon the feet of the person are on the ground. Due to lower gravity on monn we can leap longer distances!

Answer 2

Gravity depends only on the masses of the two attracting objects and their distance from each other. It does not depend on their chemical composition or density. A glob of peanut butter the mass of the Sun will have the same gravitational effect on the Earth as the Sun does. Gravity is always attractive, never repulsive (this is another way it is different from electrical and magnetic forces).

Because the masses are in the top of the fraction, more mass creates more gravity force. This also means that more massive objects produce greater accelerations than less massive objects. Since distance is in the bottom of the fraction, gravity has an inverse relation with distance: as distance increases, gravity decreases. However, gravity never goes to zero---it has an infinite range (in this respect it is like the electrical and magnetic forces). Stars feel the gravity from other stars, galaxies feel gravity from other galaxies, galaxy clusters feel gravity from other galaxies, etc. The always attractive gravity can act over the largest distances in the universe.

Answer 3

Gravity depends on the masses of the objects and their separation. The formula is

F = G*m1*m2/r^2

If you construct something of any size in space, you will stick to it (or it will stick to you, but unless it is very big and massive, the force will be very weak. There is no minimum size to be attracted to earth.

Answer 4

The mass of two objects and their distance apart.

Gravity is not very strong overall until things get very massive or very close.

the mim. size of something that could hold a person firmly to it? Well volume is no good indicator, a neutron star can be quite small and totally crush you to its surface, where as te largest asteroid in the solar system would most likely not have enough mass to hold you to it

Answer 5

Earth's gravity apply to all objects same. (980 cm/sec2 and 32ft/sec2)
Only the weight of object will determine the specific gravity
when it free fall or it is is submerged in water

Answer 6

If you are in vaccuum, any weight stick to it. However consider buoyancy on the mass u displace.

Answer 7

gravity depends on the latitude.....stronger at the equater, slightly weaker at the poles!!!

Answer 8

mass