The feather and hammer problem part 2.?

Question

The hammer and feather are both dropped at the same time but from different places. The feather from the moon and the hammer on earth. Will they hit the ground at the same time?

OOPS; my fault , because I forgot to mention that they are dropped from the same height too.

It has come to my attention that I have made a grave error in my question. The moon does not have a ground, but instead a lunar surface.
So the hammer would hit the lunar surface and not the ground. BIG TIME ERROR.

More input please.

Answer 1

Higher gravity on Earth means increased acceleration. The hammer, on Earth will hit the ground sooner. (assuming that they are dropped from the same hight.

Mass would make NO difference. Gallileo proved that by his experiment, dropping weights from the tower of Pisa. Here is a thought experiment for you: One brick falls at a certain rate. Two bricks, tied together weigh twice as much, but would you expect the two bricks to fall twice as fast, just because they were tied together?

Note to "Papu J." One of the American astronauts, on the mood made that exact demonstration using a hammer and a FEATHER. The moon is essentially without atmosphere, in other words, in space. The feather survived the trip and the fall, just fine.

"Krazykyn.." just has it dead wrong. Why would the feather fall FASTER than the hammer?

Answer 2

Which ground?
The word "ground" is usually used for the surface of the Earth, not the surface of the Moon!
"Ground" is driven from the noun "grind" and is its past participle form (the 3rd form). Practically it means that some of the upper most feet of Earth's layer consist of the (natural) materials, which has been "ground".

In no way Moon's surface could be called "ground". We may call it "lunar surface".

Further, (in question), the feather is dropped on Moon and the hammer on the Earth. How can both hit the "ground". One will fall on "ground" and the other will drop down on "lunar surface".

We do not have any air on the Moon which tells that the feather will face no resistance in falling down. We also know that the gravitational pull of the Moon is 1/6 that of Earth. Now for numerical calculations we need "masses" of both hammer and feather to calculate and answer the question.


After "Additional Detail":
The question is upside down.
Main question suggests that the hammer is dropped on Earth, the additional detail says it hits Lunar Surface!
Which one is right?

Even then I would like to compromise (uncertainity theory!) that:
Being a solid, denser and heavy body, the hammer will hit the ground before the feather (being aerial, spread, and light body) would hit the lunar surface as it is being pulled down by a far lesser gravitational force of the Moon.
But still; to be exact; we need the masses please!

Answer 3

My guess is that they are looking for the answer: The hammer will hit the ground before the feather if dropped from the same height. The reason is the the Moon has less gravity compared to the Earth. If they were both dropped in a vacuum on Earth or on the Moon they would hit the ground at the same time. But since they are dropped on different celestial bodies the rate of acceleration is different.


In a vacuum in the same place everything falls at the same rate. Weight of the object has nothing to do with it. Drop a hammer and a crumpled up piece of paper to see this in action.

Answer 4

It's highly unlikely the feather will escape the gravitational pull of the moon and land on the ground on earth in time to beat the hammer. If your asking about a mass verses gravity thing, if the feather is dropped on the moon in a total vacuum, and the hammer was dropped from the same height on earth as the feather was on the moon, in a total vacuum, you'd need math to calculate the mass of the feather as opposed to the moon, and the mass of the hammer as opposed to the earth to get the right answer.

Answer 5

No. Gravity is limited in space. The feather will never reach ground while the hammer will still be subjected to the earths gravitational pull.

Answer 6

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Answer 7

No. The feather will not encounter any atmospheric resistance because there is no air on the moon. The hammer will encounter atmospheric resistance, but the earth's gravity is greater.

Answer 8

if they are droped from the same height definately not. The feather would take longer even if it was on earth, and being that the moon has less gravity it would take even longer for the feather to land.

Answer 9

The answer should be there's no way to tell unless you can accurate calulate the falling time if you knew the mass, height of drop, gravitation pull. Even with that you'll still need to factor in air resistance. There are too many variables to accurate predict the results therefore my answer would be not enough information to figure out.

Answer 10

No. The hammer accelerates at 1/6 that of the feather, but air resistance slows the feather, and it will land later.

If BOTH were in a vacume, rather than just the hammer, the feather would fall faster.
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KrazyKyngeKorny(Krazy, not stupid)
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