what is the maximum speed , we can get without  dangerous mass increase ?
79621
yeah, mass increases. the lorentz factor is:\n1/sqrt(1-v^2/c^2)  where sqrt is square root, v is the velocity of the object, c is the speed of light, and ^2 means squared.  you would plug in the velicity you wish to find out about to v.  time decreases for you by this factor, mass increases, and length decreases.(ive had to derive these formulas from simple mechanics formulas; they're correct.) If you would plug in velocities to this formula, you would notice that the effect is negligable for any velocities not very very close to the speed of light.  Well, we definately can't go the speed of light because if you look at the formula, then v^2 would be equal to c^2 so v^2/C^2 would be 1, and 1-1 is 0. this would mean that the denominator would be 0 which is impossible.  we also can't go faster because then v^2/c^2 would be greater than one, thus subtracting that from one would yield a negative answer which would then be under a square root sign.  this is also impossible.  that's how we know we can't go as fast or faster than light speed.  Now, as far as how fast we can actually go, that depends a lot on biology.  as we get faster and faster, our mass increases and our length(and therefore volume) decreases.  now, the formula for density is m/V(mass over volume,) so our bodies would get more and more dense the faster we went. this is why there would be a limit and we couldn't just go so close to the speed of light so that time would slow down for us but not for everyone else, thus basically traveling forward in time. The question of how fast we can go becomes a question of how dense our bodies can become before either the pressure builds up too much in our cells, or our blood gets so dense it can't properly carry oxygen to our cells. The thing is, you really have to be very close to the speed of light to feel this effect.  the speed of light is 299792458 m/s. that's close to 300 million meters per second.  now lets say we go 200 million meters per second.  that's pretty darn fast, and i dont even know if we could go that fast due to the enormous amount of energy it would require to produce such accelerations.  but lets say we do.  plugging this into the formula, we get 1.16. we multiply this by the original mass, giving an increase in mass of only 16%. this isn't really all that much, we could probably handle that increase in mass, but i really don't know, my expertise is not in biology.  Still though, 200 million meters per second is pretty damn fast, anything much less than that would most certainly be negligable. you can try out some speeds for yourself to see what kind of effect it would have(you need a graphing or good scientific calculator otherwise it will round to 1 in certain places and you won't get any change at all.)  We won't have to worry about them coming anywhere close to speeds that affect our mass anytime soon though.
509153
nice question!\nhowever to me the answer would be that it would never be possible\nu should be knowing the relation b/w mass and velocity as \nnet mass= actual mass/[square root of 1-v/c(squared)]\nhere only v/c is squared\nso u see, as the velocity increases the mass of the body increases and hence this compells the body to slow down as mass is inversely proportional to velocity(since constant thrust is applied)\nhence it would never be possible to attain the speed of light, as by this hypothesis at the velocity of light, the mass of the body becomes infinite
41407
Anywhere from 105.00 to 190.00 depending on speed and space
106267
The fastest speed limit is no limit. In Nebraska where it is all farm land, they dont have a limit.
201138
The fastest speed for any single object is c. Sometimes it's also useful to refer to the speed at which the relative distance between two objects is changing. The maximum value allowed by special relativity for that is 2c, but in cosmology the distance between two objects billions of lightyears apart could be changing at an even faster rate because of the expansion of the space.
177169
If it has rest mass, it can't travel faster than light, because as it gets closer to lightspeed, more of the energy you're using to increase its speed is converted into an increase in mass, which of course makes it harder to increase its speed.  Lorentz and Fitzgerald worked out the equations a century ago, and they've been confirmed in particle accelerators.  See the link.
709931
kaksi_guy: I think charlesellis753 is correct.  If we interpret the question as a fill in the blank, mass appears to be the best answer.\n\nIf the ______ of an object doubles, then the force required to accelerate it at the same rate will double.\n\nThat sentence is true is the blank is filled with 'mass'.
391419
618 km/s (just under 1.4 million mph).  Important to know this figure if you want to move around in the solar system as it scales with your distance from the sun.\n\nYou can find the escape velocity of any object:\nEscape Velocity = SquareRoot((2GM)/r)\nG = Neton's gravitational constant\nM = mass\nr = radius
1174553
You misinterpreted something. By your theory, when I jump up from the ground, my final velocity is equal to Earth's escape velocity, which is around 9 meters per second, I think. Probably more. But either way, that is much faster than I can possibly go.\n\nAlso, there is NO law which says that velocities higher than c are impossible, it just says that velocities EQUAL to c are impossible.
209689
mass in motion stays in motion unless disrupted by another force!
679906
or is it maximun voltage?\n\nlike terminal velocity is maximum speed...
272724
Time for the speed demon will slow down. If you reach the speed of light (theoretically impossible) time will stop, but only for you. In other words, by the time you get back to Earth, Earth will be billions of years in the future, if not much more.\n\nHowever, traveling at the speed of light is impossible. As you increase your speed, your mass increases. This was proven by Einstein by his E = mc^2 equation. Therefore, when you hit the speed of light, your mass is infinite. All the energy in the universe could not move something that had an infinite mass, obviously.
943563
I have no clue of any, but I know that the escape velocity of Earth (the speed of which it takes to escape Earths gravity) is 25,000 mph. Try launching six and a half tons 25,000mph!=)
657426
Well the sad truth is YOU CAN'T...in fact you can't even travel at one times the speed of light. Einstein covered this about 100 years ago. Anything that has mass cannot achieve the speed of light for a couple of different reasons. Trust me on this.
746381
No, the laws of physics currently prohibit any type of matter from accelerating to light speed, since it would take an infinite amount of energy to do so.
260158
Suppose you are accelerating due to the presence of some mass M and you are some distance r away from the mass. You yourself have mass m. Then we know that your gravitational potential energy is equivalent to your maximum kinetic energy. Thus GMm/r = (1/2)*mv^2, or v = Sqrt[2GM/r]. If you start far enough away, you can take r to be the radius of the mass you are accelerating towards and then v will be your velocity as you hit the ground, not accounting for relativistic effects. \nIf you are in a starship and using some sort of propulsion relative to some inertial space-time frame, you have an asymptotic upper limit of c as measured from any such  frame, from basic relativity theory.\nIf you are not moving relative to an inertial frame (ie., you are using a gravity drive as described in the source link), then your "velocity" is not limited by any theory in contemporary physics.
650633
No known force could push you faster than light.  The only exception might be quantum entanglement, but we're nowhere near the technology to use that.  At the speed of light, nothing could catch up to you from behind, but plenty of stuff will hit you from the side or head on.  Just like any propulsion, light propulsion might get you close to but not quite to the speed of light.