# Thread: Acceleration vs Velocity - Black Hole Event Horizon

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## Acceleration vs Velocity - Black Hole Event Horizon

If an object has an acceleration = c/1000 m/s2 then according to Newtonian calculations it would reach the speed of light in 1000 seconds.

But then there is the time dilation effect sqrt(1- v2/c2) which when multiplied by the above Newtonian calculations results in the velocity = 0.0 m/s at time = 1000 s

According to my Microsoft Excel chart (below) the maximum speed the object can attain is 0.5c at time = 707 seconds.

Is this the braking effect of GR because I read somewhere on this forum that GR actually begins to brake an in-falling object so that the object stops at the event horizon?

Or maybe I'm just not calculating it correct ....

GvT.GIF
Last edited by xylophobe; 2012-Feb-28 at 08:39 PM. Reason: Formating Fixes

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