Why does a feather and a hamer land on the moon the same time?

Question

ummm, a litle bit tricky this!!

from the same hight
and i watched this video in my science class about a feather land the same tim on the moon.

Answer 1

Because there is no atmosphere on the Moon, so no air resistance. In the absence of air resistance, all objects fall down at the same rate. Galileo is said to have shown that by dropping two weights from the top of the Tower of Pisa - they had different weights, but they landed at exactly the same time (so the story goes). The only reason feathers usually take longer to fall is because of air resistance.

Answer 2

They would do the same thing on Earth if there was no air (or much less like on the moon).

Gravity accelerates things at a constant rate. The more massive the object the more gravity it has... the moon has, therefore, less gravity than the Earth which is why when the astronauts bounced up it too them more time to fall back down. They too fell at the same rate as the hammer and feather. Gravity on Earth is greater but it acts the same way on all objects. It exerts the same force (pulls at the same rate) on the man, hammer and feather too. The difference is that the thick air molecules slow down the feather which has more surface area for it's mass and therefore more readily "catches" the air.

Answer 3

Both the moon and earth have gravity. Fancy some replies not knowing that!! With no air or gas of any kind on the moon to act as a brake to slow the fall down all objects fall at the same rate. They will fall more slowly than they would be on earth (if the earth had no air). This is because the moon is smaller so the force making the objects fall is only about 1/6th of the gravity force on earth.

If you remember the spoof TV programme which said that a flag was waving on the moon so the Apollo moon landings must have been faked. This is the same thing as a slightly flexible flag set waving will keep doing so for some time (like a pendulum) as no air resistance exists to slow it down either!

Early scientists always assumed heavy objects fell faster than light ones. Galileo proved by experiment that this was wrong and that without the air all objects fall to earth (or moon) at a fixed rate of acceleration.

Answer 4

The speed at which something will fall under gravity does not change if the mass is different. The hammer and feather will both accelerate towards the ground at the same rate.

The reason they fall at different rates on earth is that a feather is slowed by air resistance. On the moon there is no atmosphere so no air resistance abd both fall at the same rate.

Answer 5

whilst an merchandise falls in a gravitational field it falls in the direction of the centre of that gravitational field as a set acceleration value. For Earth it is 32.2 ft/s -² or 9.8 m/s -² for the Moon it fairly is 5.35 ft/s -² or a million.6 m/s -² What this means is that once you drop a brick and a feather on the moon they'll the two improve up in the direction of the centre of the Moon at a value of 5.35 ft in keeping with 2d. the explanation this doesn’t take place of Earth is that the bypass-sectional part of the feather whilst in comparison with its mass is larger interior the feather than the brick. So the ambience will decelerate the feather better than the brick. in case you dropped the brick interior a vacuum chamber on earth you may locate it fell somewhat speedier than whilst out of the chamber; as a results of air resistance. it may be an exceedingly reasonable replace yet a measurable one.

Answer 6

Gravity is a force every body of mass has that accelerates objects at it at the same rate no matter their size.

Because the Moon has no atmosphere the feather will not be affected as it is on Earth where air resistance causes it to twirl and slow its descent.

Thus, both fall at the same rate and hit at the same time.

Answer 7

Because space is a vaccume(having no air) And with the only thing pulling on them is gravity, they land at the sam time. If the Earth were a vacume, all objects would accelerate towards earth at about 9.8 m/s. Thus, landing at the same. I don't know the accelration rate on the moon though

Answer 8

The rate of descent doesn't rely on mass. The only thing stopping a feather from falling at the same speed as the hammer on Earth is air resistance. So since there is no air on the moon they fall at the same rate.

The mathematical proof is as follows:-

Potential energy of feather before release= kinetic energy at impact.

So PE = KE
m(g)*h = 0.5(m)v^2

So mass (m) cancels from both sides and velocity is given by

V = sqrt[2(g)h)]

i.e. velocity is independent of mass so objects fall at same speed in a vacuum

Answer 9

In a uniform gravitational field everything accelerates at the same rate and on the moon, there's no atmosphere to slow down the feather.

Answer 10

I thought it was a pound of feathers and a pound of lead. Which would land first? Both land at the same time. It's the weight, not the object. So a hammer weighing a ton would land at the same time as a ton of feathers.