Questions tagged [acceleration]
Questions regarding acceleration - the rate and/or direction by which an object's speed or velocity vector changes with respect to time.
61 questions
4votes
1answer
1kviews
How much time would an astronaut experience accelerating to .9999x the speed of light at an acceleration of 1G from the astronauts perspective?
So if the astronaut is experiencing a constant 1g acceleration, how much time would pass for them before an outside observer would measure their speed at .9999C? I saw this question and noticed that ...
1vote
2answers
343views
What can possibly accelerate space elevator to these types of extreme velocities?
Is it possible for a space elevator not to just reach speeds of a few hundred km/h, but much faster. Since in the future, people might want to go up to GEO to maybe work there and come back home on ...
- 6,933
5votes
2answers
528views
Are rockets deliberately throttled back towards the end of the burn to spare crew and airframe g-forces?
Throughout its burn, a rocket gets lighter as propellant is consumed. As a result, acceleration (and g-force) increase. In the shuttle, the SSMEs were throttled back towards the end of the burn ...
- 33k
2votes
2answers
495views
Difference in using flat earth or round earth model for equation of motion
according to the book of Mr. Peter H. Zipfel (Modeling and simulation of aerospace vehicles) for high speed or/and long flight applictions kinematic simulations should be done by round rotating earth ...
- 29
1vote
0answers
67views
Use local acceleration and angular velocity to calculate rotation matrix
Can I ask if there are any python packages that can fuse local acceleration and angular velocity and get rotation matrix? Thank you!
-3votes
1answer
209views
Non-spin space station at 1g?
The discussion about spinning space stations to achieve 1g artificial gravity is well known. What about space stations with constant linear acceleration of 1g at Earth orbit /assuming we have the ...
- 79
3votes
2answers
2kviews
How to account for burned fuel mass when calculating spacecraft acceleration?
I thought I could simply remove half of the burned fuel mass to account for the mass lost during the engine burn. But I could not find a Newton's Second Law formula Calculator that would allow that, ...
0votes
1answer
160views
Thrust & acceleration produced by a rocket engine
For given propellants, with their mass flow decided by the rpm of the turbo pump, what decides the thrust and acceleration produced by a rocket engine? Can we control them independently?
- 3,806
3votes
0answers
151views
How fast can a rocket with constant thrust but changing mass travel a linear distance with limited delta V?
Background I am developing a game / simulation that has spacecraft with advanced albeit at least not physically impossible drives travelling in the solar system. As operation time should be far more ...
- 31
-4votes
1answer
163views
Will the initial velocity of an object in space get multiplied if a constant acceleration is applied? [closed]
Imagine an object travelling in space in the speed of 60 Kmph which took acceleration x if accelerated with the same x, will the object travel faster than 60 Kmph or travel in the same speed cuz of ...
2votes
0answers
119views
What is the optimal acceleration for a direct ascent to the moon? [duplicate]
If a rocket flies to any object using a direct ascent it is best for it to reach the needed speed as soon as possible because of the Hohmann effect. When it launches from the ground there is air ...
- 6,933
1vote
1answer
148views
Fuel economy on orbital launches
To achieve fuel economy during orbital launches (for a particular orbital altitude), do we select the first stage (its thrust), in such a way so as to achieve the desired altitude above the Karman ...
- 3,806
1vote
0answers
144views
Is there any major difference between acceleration of solid propelled and liquid propelled rockets during launch
Few days ago, ISRO launched its PSLV-C53, which had solid first stage. (Clip here) Also, the SpaceX's starlink launched on 24th July, 2022, having liquid first stage. (Clip here) Is there any major ...
9votes
3answers
2kviews
Can something like SpinLaunch actually work?
Can something like SpinLaunch actually work? It appears that Spinlaunch attempts to accelerate a capsule to very high speeds and then basically throw it into space. A regular rocket is moving slowest ...
- 605
1vote
0answers
51views
How many particles per acceleration cycle in a cyclotron? [closed]
particle accelerators accelerate ''beams of particles'' - do cyclotrons accelerate single particles or a batch of particles per accelerating cycle? How many particles can be accelerated in a batch per ...
- 79
