# How does gravity grow through acceleration.

1. Jun 25, 2006

### Arian

If I am accelerating, in space, 3000 mph every hour, how many G's do I feel?

at 10,000 mph?

2. Jun 25, 2006

### Hootenanny

Staff Emeritus
Use Newton's second law and find out.

3. Jun 25, 2006

### scott1

It's:
$$F=ma$$
If you don't know
(which you probally do know just wanted to make sure)

Last edited: Jun 25, 2006
4. Jun 25, 2006

### Staff: Mentor

Nah, it's just a unit-conversion problem. One "G" equals 9.8 m/sec^2 (m/sec per second) or 32 ft/sec^2 (ft/sec per sec). So he needs to convert 3000 mi/hr per hr to whichever units are more convenient for him.

If he's rusty on unit conversions, he might want to do it one step at a time, starting for example with

3000 mi/hr per hr = (3000 * 5280) ft/hr per hr

5. Jun 25, 2006

### Mindscrape

Why would it matter how many 'g's you feel at 10000 mph? It would be the same as at 0 mph because 'g's is a measure of acceleration not velocity.

6. Jun 25, 2006

### Hootenanny

Staff Emeritus
If you look at the post he/she says 300mph per hour, which is an acceleration. However, he/she later says 10 000mph, but I think they simply forgot to add the 'per hour'
Yeah, I've realised that, I only half read the post tbh.

7. Jun 25, 2006

### Janus

Staff Emeritus

8. Jun 28, 2006

### Caesar_Rahil

Use Einstein's second law, F=ma

9. Jun 29, 2006

### Hootenanny

Staff Emeritus

10. Jun 29, 2006

### HallsofIvy

Staff Emeritus
By the way, the title of this thread, "How does gravity grow through acceleration", is very misleading! "g"s are a measure of acceleration. "Gravity" does not change "through acceleration"!

11. Jun 29, 2006

### J77

Yeah - this is a unit conversion question first, then simply a division by 9.8 second.

Newton's theory of genial relativity, innit :tongue:

12. Jun 29, 2006

### Kurdt

Staff Emeritus
Wasn't Einstein's second law never wear the same pair of socks simultaneously?

13. Jun 29, 2006

### Mech_Engineer

Uh, wow

14. Jun 29, 2006

### DaveC426913

Newton, Einstein, whatever - they're all eggheads. Can't tell em apart.

You! Beer-stein! Do my homework or I'll stuff your head in the toilet!

15. Jun 29, 2006

### Arian

Thank you Janus, that is what I wanted to know,
I already know f = ma.

16. Jun 30, 2006

### J77

You wanted to know the answer, not how to do the question?!?! :surprised

17. Jun 30, 2006

### Arian

Well, yes, If you can tell me in an understanable way, with exaples...

But with the answers I was given I will be able to deduce more answers by using simple algebra.

18. Jul 1, 2006

### HallsofIvy

Staff Emeritus
His point is that you specifically thanked Janus, whose answer consisted entirely of
and
which gives no explanation at all!

19. Jul 1, 2006

### Arian

I don't need to know the way you got it if I can find more answers from two.

20. Jul 1, 2006

### lightgrav

Arian is trying to learn how to write ...
by knowing that periods go just before Capital letters.