is the gravitational force is acting same on all elements.. recently i saw a footage of a man droping the feather and iron in to the ground of the moon the both elements fallen exactly as same as equal....
2006-06-20 21:48:18 · 8 answers · asked by maddy 2 in Science & Mathematics ➔ Earth Sciences & Geology
Yes, sort of...
The force of gravity is dependent on the amount of mass a body has. That means that the gravity on the Earth is greater than the gravity on the Moon, since the Earth has much more matter or mass than the Moon.
To mathematical deduce the force of gravity on an object the following equation is used:
F = Gm1m2 / r^2
G is the gravitational constant
m1 is the mass of object one
m2 is the mass of object two
r is the distance between the two objects
The force of gravity for two objects on the moon would virtually be the same because the masses of the objects being dropped would be negligible compared to the mass of the moon. There is no air resistance on the moon as well, thus they would fall, for all practical purposes, at the same rate.
If you compare two plants which have much different ratios of mass you will see that the force of gravity changes at this scale depending of how massive on object you are comparing it too.
2006-06-20 23:46:34 · answer #1 · answered by kennvus 2 · 0⤊ 0⤋
Gravitational force acts exactly the same way on all elements, and the acceleration that things acquire because of gravitation is the same, no matter how heavy it is and from what material. What causes different things to fall with different speed on earth, is the friction with air. Therefore, if there is no atmosphere (no air, like on the moon), different stuff will fall with the same speed. Creepy, but true.
2006-06-20 21:57:44 · answer #2 · answered by ray_archangel 2 · 0⤊ 0⤋
Yes it does. The reason an iron drops to the ground faster than a feather here on earth is because of wind resistance (the feather has higher wind resistence than the iron). However on the moon there is no air and therefore no wind resistance, therefore as gravity does act the same on all elements they both fall exactly at the same speed.
2006-06-20 21:52:19 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Certainly not. Newton's equation for gravitational attraction is:
Force of Attraction = (Constant) times (mass1 times mass2) divided by (distance between the 2 objects squared).
The mass of a cubic meter of iron is different than the mass of a cubic meter of feathers, so the force of attraction between each of them and a third object (like the moon) is different.
The reason it *appears* to be the same, is that the mass of the moon is so dominating, compared to the mass of the test object. If you put another moon next to the moon, they would attract each other with much more gravitational force, as compared with the force between the moon and a pound of feathers.
2006-06-20 22:14:12 · answer #4 · answered by Tom 2 · 0⤊ 0⤋
Think about it. If there were no forces keeping the moon "attracted" to the earth., the moon would have spun/floated away from the earth a long time ago. Certainly the moon would not have stayed in its orbit around the earth. Yes? Thus, forces such as gravity must be acting on the moon.
2016-05-20 08:13:43 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The gravitational force is acting on all objects. All is does is accerate objects to a set speed at a rate of 9.81 m/s^2. The weight of an object does not effect the speed of how things fall d but raither things like air resistance, shape, etc etc etc
2006-06-20 21:52:45 · answer #6 · answered by Mr Hex Vision 7 · 0⤊ 0⤋
yes. gravitational force is same irrespective of the mass. But the air friction is what makes the heavier item fall faster than a lighter one.
Try this:
let a paper fall on its own
next time, crush it and allow it to fall. the timing differs becos of the air resistance only!!
2006-06-20 22:08:04 · answer #7 · answered by Anonymous · 0⤊ 0⤋
yes, it does.
2006-06-20 22:13:03 · answer #8 · answered by egymah 4 · 0⤊ 0⤋