How is MOON attracted towards EARTH????

Question

We know that the gravitational energy of earth apparoches Zero at a ht equal to half of it's radius.But moon of too far from earth(more than half of it's radius). Then hjow is Moon is attracted towards Earth?

Answer 1

The moon is attracted to the earth for the same reason that objects fall toward the earth that are near its surface, there is a FORCE between the object and the earth. You are confusing energy with force, and your initial statement is ambiguous, grav potential energy is zero wherever you choose zero to be..

All massive objects are attracted to each other - this is called Newton's Universal Law of Gravitation. Gravitation is the weakest of all the forces, so at least one of the objects has to be REALLY massive to observe and effect (like a moon, planet, Sun etc.)

F=(G*M1*M2*)/R^2

where G is a very small constant, M1 and M2 are the masses of the two objects involved in the interaction and R is the distance that the two objects are seperated.

In the case of the Earth-Moon, the masses are their masses and R is the distance between their centers.

F is not zero, there is certainly a force. We see the effect in that the moon is moving in uniform circular motion around the earth.

Answer 2

The Earth Is Just So Damn Sexy.


The Moon is in synchronous rotation, meaning that it keeps (almost) the same face turned to the Earth at all times. The Moon makes a complete orbit about the Earth approximately once every 27.3 days; unlike most satellites of other planets, the Moon orbits near the ecliptic and not the Earth's equatorial plane.

The Earth and Moon have many physical effects upon one another, including the tides. Most of the tidal effects seen on the Earth are caused by the Moon's gravitational pull, with a smaller contribution from the Sun.

The Earth-Moon system may be considered to be a double planet rather than a planet-moon system.[3] This is due to the exceptionally large size of the Moon relative to its host planet, in which case the Moon is one-fourth the diameter of Earth and 1/81 the mass. With the exception of the double planet Pluto-Charon, no other planet in the Solar System has an orbiting body with more than 1/4000 of the host planet's mass

Answer 3

Who told you that gravitational energy of Earth approaches zero at a height half its radius?! If so, how can black holes exist with such a strong gravitational pull and small radius!

Gravitational force should be = (G*M*m)/r^2 where
G = gravitational constant
M = mass of first object (Earth)
m = mass of second object (Moon)
r = distance between the two objects.

We know the G, M and m is a positive value, so the gravitational force can only decrease when you get further away but not reach zero unless r = infinity.

Answer 4

MOON IS NOT TOO FAR FROM EARTH
Moon is about 60 Earth Radii from the Earth.
and also Distance that the Moon falls towards Earth in 1 second: = 0.00136 meters
http://www.astronomy.ohio-state.edu/~pogge/Ast161/Unit4/gravity.html

Answer 5

both the Earth and the mood are rotating about a level it quite is the centre of gravity of the Earth-Moon equipment. as a results of major distinction in mass between the Earth and the Moon, that factor is way below the Earth's floor, and thanks to Earth's rotation, the point relative to the Earth is shifting. So, certainly, the Moon is "falling" in direction of the Earth, and the Earth is likewise "falling" in direction of the Moon.

Answer 6

It attracts towards the earth by the earths gravity and by it self's gravity, even if small (this is why it rotates slower) . Even the universe stands by all the gravity of all the objects in it.

Answer 7

It's Gravity.
E=mc²
Mass curves the space around it, forever falling towards the Earth, thus making seem attracted.
Energy = Mass x (speed of light in vacuum)squared.

Answer 8

isn't the moon actually drifting away from the earth very slowly, cm's per century or something, because of the masspull makeing it always accelerate?

Answer 9

earth have gravity, moon is just close enough to not escape from earth's gravity

Answer 10

Maybe it likes the nice colours.