# The acceleration of gravity depends on its location

1. Feb 21, 2015

### Sakamo

CMIIW

Therefore, if we jumped from the same height buildings
which were located on different areas,
such as North Pole and Jakarta,
the person who launch from the former,
would experience more fear
than the person from the latter.

This is because who jumped from the North Pole’s building,
must fall towards the ground with higher speed
than that of Jakarta’s.

Or not?

Last edited by a moderator: Feb 21, 2015
2. Feb 21, 2015

### Suraj M

Fear? You can't gauge fear between two people, its relative for oneself and to gauge it for 2 different people is even more tough!
Anyway your right on the fact that the guy at the pole would fall faster. this is because of earth's rotation.
I'd like to ask you a related question, (because i'm not sure of the answer myself ) if you were to consider air resistance, would the difference be significant?

3. Feb 21, 2015

### Sakamo

Suraj M,

Right on.
Fear depends.

Air resistance?
Have never imagined in this case.
But I presume the difference won’t be significant.

4. Feb 21, 2015

### Staff: Mentor

5. Feb 21, 2015

### DaveC426913

The inclusion of fear in this question is odd. Fear is entirely subjective.
The fear one might experience just being at the North Pole versus Jakarta would surely be a bigger factor than the speed at which one falls.

More on-point though: the difference in acceleration is so slight that one could not possibly experience it directly. It's not like, as the person is falling, he will sense he is going faster and then feel fear proportional to his speed.

6. Feb 21, 2015

### Suraj M

I dont understand what you mean, Dale. what do you mean by 'that large'?

7. Feb 21, 2015

### Staff: Mentor

The variation in the force of gravity at the surface of the earth is no more than 0.7% of the weight. This would be less than 1.5 pounds difference for a 200 lb man. If air resistance is also about 1.5 pounds then it would be as significant as the variation in g.

8. Feb 21, 2015

### Suraj M

no Dale i was actually referring to the variation in air resistance at the poles as compared to the equator, are you also talking of the same thing?

9. Feb 21, 2015

### DaveC426913

What makes you think there is a significant difference in air resistance between different parts of the planet? Sure, there's a little, based on temperature and altitude. But really, this is pretty insignificant when talking about falling off a building.

10. Feb 21, 2015

### Staff: Mentor

No, I wasn't. So let's not derail Sakamo's thread further trying to clarify something that wasn't his question.

11. Feb 21, 2015

### Sakamo

DaveC426913,
The voice of authority.

Suraj M,
I presume what DaleSpam meant “that large” is
“the large air resistance which could affect the gravity”.