Speed of Gravity?

Question

What is the speed of gravity?

Is there an physics equation?

Answer 1

There is no speed of gravity... there is an acceleration due to gravity which is approximately 9.81 m/s^2 (meters/second^2)

if you want to know the speed of an object after its dropped here are some equations

vi = initial velocity
vf = final velocity
g = 9.81m/s^2
d = displacement
t = time
a = acceleration

1) v = d/t
2) a = v/t
3) d = vi*t + 1/2*a*t^2
4) d = vf*t - 1/2*a*t^2
5) vf^2-vi^2 = 2*d*a

*REMEMBER VELOCITY AND DISPLACEMENT ARE VETORS!!! MEANING THEY HAVE DIRECTION

eg. if you walk north 5km and then south 3km, your final displacement is 2km north.

Answer 2

It's still debated among scientists. The 1993 Nobel Prize in physics was awarded to a team who reached this conclusion based on astronomical observations. Watch for results from the LIGO (Laser Interferometer Gravitational-Wave Observatory) and LISA (Laser Interferometer Space Antenna) projects, and the work of Joseph Taylor and Russel Hulse at Princeton.

Gravitation is an extremely weak force, very hard to measure. It's hard to set up an experiment with changing gravitational fields. I wouldn't call it conclusive yet, but I think most physicists would place their bets that gravitation propagates at the speed of light.

Answer 3

It is the same as the speed of light -

By the way - you asked a question 'Replacing Math A and Math B?' and gave me a best answer but you also said you were not looking for math help. Did you look at my proof? I noticed you are a math major - I just proved 2 = 1 - and you didn't tell me how I did it. Can you explain how I proved 2 = 1? All the steps are correct - where is the mistake?

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Answer 4

Gravity is propagated at the same speed as light (ie 3X10^8 m/s).

According to relativity, all massless particles travel at this speed. Light consists of massless particles called photons. Gravity consists of massless particles called gravitons.

So, for instance, the gravity of the sun holding the earth in its orbit travels from sun to earth at 3X10^8 m/s.


Note Added: To all the answerers going on and on about the acceleration due to gravity on Earth being 9.8m/s^2 and claiming gravity "has no speed", may I point out that the question is about the speed of gravity ITSELF (and not the speed of objects under the influence of gravity on Earth) .

Answer 5

NASA makes use of the gravity each and all of the photograph voltaic and a planet (neither on my own) to slingshot products contained in the time of the solar technique. all the planetary merchandise can do contained in the absence of it incredibly is orbital %. is turn the spacecraft to a minimum of one greater course. If it incredibly is performed thoroughly a spacecraft effective residences or loses velocity via being dragged alongside the orbit of a planet (inclusive of the substitute in course) the two in the equivalent course because of the fact the planet orbits (receive in %.) or in the alternative course (velocity loss). The orbit of the planet is dictated by skill of the stress of the gravity of the solar and it incredibly is distance. If the spacecraft passes the planet in the time of it incredibly is orbit quite than alongside the orbit (over the poles, working example, if the poles element effortless to the orbital plane) there is additionally no eternal exchange in velocity yet in simple terms a metamorphosis in course. (there's a solar probe contained in the industry ideal now that went all the approach to Jupiter, crossed that planet's orbit in the time of it incredibly is polar factors, and reversed course, back in direction of the photograph voltaic, whether with little commerce in velocity). So, if an merchandise entered the gravity component of a black hollow and controlled to come again decrease back out as quickly as greater it incredibly is %. would be a similar because of the fact it was till now the close stumble upon, if the till now and after distances to the black hollow have been a similar. it would be sped as much as close to easy velocity at one or another ingredient, whether it would then gradual in simple terms as plenty because it sped up. hit upon I changed quite rapidly precise right here and there from utilizing the term velocity to the term %.. it incredibly is because of the fact velocity is commerce in place divided via time, while velocity dictates acceleration (which will mean equivalent velocity, particular course).

Answer 6

the first answer is absolutely wrong! all objects fall at the same rate in a vacuum no matter how much they weigh. and gravity actually does not have a speed, because, as we know objects accelerate when falling. gravity has an acceleration of 9.8 m/s^2. that is, every second some object is falling and we record its speed at that instant, it will be 9.8 m/s faster each time.

Answer 7

Gravitational waves propagate through spacetime at the speed of light or c.

Answer 8

gravity is an acceloration, or a.
a = f/m (force/mass)
f = (m1 x m2 x 11.67 x 10^ -11)/r (where r = radius)
therefore
a =[ (m1 x m2 x 11.67 x 10^ -11)/r] /m

Answer 9

Gravity has an ACCELERATION of 9.8 m/s/s

Answer 10

9.8m/s^2 or 32ft/s^2 .... (a=2d/t^2)