Is there a speed of gravity, or is it timeless? Two objects attract each other. But what if I move one of them(With a high speed)? Does the other object respond imediatly, or does it have a response delay? Just like we see stars on the sky, that aren't even there anymore, because of the speed of light.
2007-02-11 09:11:05 · 13 answers · asked by Tomek 2 in Science & Mathematics ➔ Physics
Gravity is always:
- 9.81 m/s^2
That's negative 9.81 meters OVER seconds squared. The meters are not squared, but the seconds are.
The negative can sometimes be ignored though, depending on what type of problem you are working.
Feel free to contact me for more help!
2007-02-11 09:23:37 · answer #1 · answered by toothpickgurl 3 · 0⤊ 3⤋
Gravity doesn't have a speed. If one of the objects is sufficiently large for gravity to have any significance, you will not be able to move that object with any great speed, instantly. Because of inertia, you will take time to come up to speed.
Lastly, in reference to the stars, we see some that are not there now because of the time it takes for the light to get those great distances. A light year is the distance light travels in one year.
Just for information it takes light about 4 and 1/2 minutes to get from our sun to us, about 93 million miles.
2007-02-11 17:20:18 · answer #2 · answered by sparbles 5 · 0⤊ 0⤋
Gravity travels at the speed of light but here on earth it pulls objects 9.8 m/S^2 however if it was increased/decreased the object would follow faster/slower but its effect if felt at the speed of light
hey Jeanette M just post the link nobody wants to look at 10 copied paragraphs
2007-02-11 17:14:47 · answer #3 · answered by whyus?? 3 · 2⤊ 0⤋
Speed (or, more properly, velocity) and time aren't the same thing, so the first part of the question doesn't make much sense.
As for the second part, the intermediary gravitational boson (called a 'graviton') doesn't move at superluminary speeds so far as we know. If it did, it would violate causality since we then could (in theory) measure the effect(s) of something happening before we observed it happening.
Hope that helps âº
Doug
2007-02-11 17:24:21 · answer #4 · answered by doug_donaghue 7 · 1⤊ 0⤋
Gravity travels through space at the speed of light. For instance, if the sun blew up we would not feel the effect of that until 8 minutes later.
2007-02-11 17:15:14 · answer #5 · answered by pluto035 3 · 2⤊ 0⤋
The speed of gravity is equal to the speed of light in a vacuum (299,792,458 meters per second... IIRC).
The 9.8 meters per second squared sited in other answers is actually the accelleration due to gravity at the Earth's surface
MistWing SilverTail
2007-02-11 17:18:13 · answer #6 · answered by MistWing 4 · 3⤊ 0⤋
gravity travels at the speed of light,
the acceleration due to gravity on the Earth is 9.8 m/s^2, that is what some of the other answerers are saying
2007-02-11 17:20:04 · answer #7 · answered by connor0314 3 · 1⤊ 0⤋
Acceleration due to gravity varies with altitude.The effect is smallest at the poles ,and largest at the equater,g,at the smallest=9.789m/s^2 ,and at the largest =9.832m/s^2.Not a large difference.When plugging into an equation,unless otherwise spiecified we use 9.8m/s^2,
2007-02-11 17:54:37 · answer #8 · answered by RhondaJo 2 · 0⤊ 0⤋
9.8 meters / second.
At least that's the speed of a falling object
2007-02-11 17:19:53 · answer #9 · answered by Pedro 3 · 0⤊ 1⤋
9.8 meters per second squared isnt it?
2007-02-11 17:14:58 · answer #10 · answered by skaguy8789 1 · 0⤊ 1⤋