In space Dose an Object accellerate untill there is no thrust?
109269
In space, because there is no air resistance or the like, thrust equals acceleration.  Also acording to newton's laws of motion an object in motion stays in that motion unless a force acts on it.  So if a rock is moving through space it will move with constant speed unless gravity or another force pulls or pushes it off course.  If a rocket constantly uses it's thrusters it would constantly accelerate until the force pushing it stoped.  I hope this helps!
1022574
They move satellites in orbit all the time.  It depends how much fuel they have and what type of propulsion they have.  Satellites can not be stationary.  They CAN however take an orbit (very high) that allows them to orbit the earth once every 24 hours so they can remain above a certain point where they seem motionless to us on the ground.
742623
if a body is at rest or in motion  it will remain at or in motion until or unless an external force is applied.
20369
No. The rotation continues simply because there is nothing to stop it in space.  A free object will continue to rotate along the same axis unless you apply a force to it.
451224
In theory, a very light weight space craft with a very large area "sail" could use pressure from sunlight itself to accelerate. Note that it is the actual sunlight, as in photons, that exert the force, not the solar wind, which is a stream of particles from the Sun. The solar wind does not exert nearly as much force as the light does. Hard to believe, but true.
39004
Its not impractical because you have perpetual motion in space get it spinning and it will spin forever at the same speed.  No friction.  Thats the only way to do it because you can create Gravity like on startrek
905311
Air resistance is a force operating in opposition to thrust.  With a given thrust the object increases speed, which increases drag due to air resistance, until thrust and drag are equal at which point the object no longer accelerates.  This also applies if the "thrust" is gravity acting on a falling object -- it will reach "terminal velocity" when gravity has accelerated it to a speed at which the air resistance is equal to the weight of the falling object, at which point the forces are in equilibrium and the object neither increases nor decreases in speed.\n\nThe shape of an object affects air resistance -- generally speaking the greater the cross section and the flatter the leading and trailing edges are perpendicular to the direction of travel, the greater the air resistance and the lower the maximum velocity or terminal velocity that can be achieved.\n\nBy adjusting the shape of an object so that air flows around that object with the minimum of resistance, you decrease the drag and this in turn increases the maximum acceleration and speed.  It can alternately be used to increase efficiency as less thrust is needed to achieve the same accelerations and speeds.
973904
I presume you mean the external fuel tank?\nIt is jettisoned just before the shuttle reaches orbit, and the tank lacking just a bit of speed to actually make it in orbit, it falls back and burns up in the atmosphere.
1098292
if a rocket were to "stop"  in space  it would come tumblin down like a rock. a rockets orbit is what keeps it up there.  if you meant how does it dock or move its by using stabilizer rockets
1159027
...mass of the planet it is "escaping" from, and the mass of the rocket.\n\nIf there are other large objects close enough to exert a gravitational influence on the rocket, these may need to be factored in as well.
330093
These answers are correct, in that inertia is only present during acceleration.   This is why countless designs to create gravity-like conditions on spacecraft don't work, because they try basing them on acceleration, which will not work when objects inside the craft appose each other in any way...IE, a person moves.  Now to get to what humans are confused about.  Gravity is not a force at all, but simply the consequence of the local slope of the universe, in a direction the human eye cannot see: time.  You stick to the floor not because gravity is pulling you down, but because that is the shortest distance between today and tomorrow.  In the mid 1950s, the Manhattan project had has its goals to crack the anti-gravity mystery.  Many publications were abundant during the early 50's.  By 1957, it completely stopped.  The Kinemassic Force field generator is probably the most known and only accepted anti-gravity generator ever created by humans.  This design has been arrived at by several scientists in the last 10 years.  When charged, the generator creates a gravitational field that is non-magnetic based.  Uses include artificial gravity, and propulsion.  This methodology is likely the future of space travel, and also disproves the Newtonian view of gravity in the universe.
857884
If, by "gravitational acceleration," you mean the acceleration of gravity, g, then the answer is that air resistance has no effect.  But you probably mean the acceleration of an object due to gravity.  If you drop an object, it accelerates downward, initially with an acceleration of g, ie, 9.81 m/s^2 or 32.2 ft/s^2.  But as soon as it is moving, the air striking its surface exerts a force on it that opposes its fall.  That force increases with the square of the object's velocity; in other words, if the velocity is, say, 10 m/s, the force on it due to air resistance will be 4 times what it was at 5 m/s.  The object will continue to accelerate, but its acceleration will continually decrease.  Finally, when the force on it due to air resistance is equal to the force of the gravitational attraction, it will reach a constant velocity.  That's what's called "terminal velocity."  If there is no air resistance, mass has no effect on the object's acceleration.  However, a more massive object will reach a higher terminal velocity than a less massive one, if both experience the same air resistance.  In other words, a sphere made of lead will accelerate faster and reach a higher velocity than one made of aluminum, if they're the same diameter and have the same surface properties.
487670
None. It takes no power to maintain that speed (on level ground, no friction). The object has kinetic energy (0.5 * m * v^2). Power was required to put it in motion and power can be recovered by decelerating it. If you do the math, the energy is 3551.86 ft-lb, equivalent to 1 horsepower for 6.458 seconds. Answer 1 neglected the fact that weight must be converted to mass by dividing by g, and energy is proportional to v^2.
952325
You would not feel any change. You were weightless before the star 'appeared'. And once you come under the acceleration (you might call it deceleration), you would still be weightless in the reference system of the interior of your spacecraft. You would be subject to the same gravity of this star as your spacecraft, and would still be free-floating. \n\nEven if your spacecraft were exerting thrust, you would feel only the force of that thrust on your body. Assuming you are in a seat, the seat has to push you to keep you moving at the spacecraft's velocity. Even though the acceleration due to the star is presumably much higher than that of the thrust, all you feel is the relatively small thrust. It's because you fall equally with the spacecraft. Think back to the last time you were in an elevator and the cable broke.\n\nYou would notice only if you looked astern, or it started getting hot.
524989
a) the ground is counteracting the force of gravity, so the rocket is at rest, no other outside forc is acting upon it.\nb) becuase force is applied to the rocket.\nc) becuase of the force of gravity (and friction from air)\nd) if there were no gravity or friction from air
939350
The height of the plane does not affect the acceleration, only the angle.\n\nAcceleration will be constant as long as the force acting on it is constant. The force contributing to acceleration (gravity) is constant.
368139
If the object has onboard power, then the speed is not really relevant to whether it will leave the atmosphere, just when. If you just fire an object upwards and it has no self-propulsion, however, then you need to calculate the change in gravitational potential energy (find out how far the atmosphere extends) and add the energy lost to air friction (this depends on velocity). Equate this to the object's initial kinetic energy and solve for initial velocity v. Your initial velocity will have to be larger than this.