Questions tagged [velocity]
The velocity tag has no usage guidance.
0
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1answer
127 views
How would you eject an object from an airlock for maximum velocity? [on hold]
If a space explorer needed to eject an inert object from a cylindrical airlock that was roughly barrel shaped (length >> diameter) at maximum velocity, would they be better suited to position the ...
2
votes
2answers
65 views
How to calculate velocity components of a point on Mars surface w.r.t. Mars center?
I found altitude, speed and acceleration data of old mission Phoenix during EDL phase, but they are referred to Mars c.o.g. rather than to ground or to landing site:
Position and velocity (...
19
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2answers
5k views
What eliminates the velocity when occupants return from ISS to earth, and how much?
The ISS has an orbital velocity of ~28000 km/h; the velocity $v$ relative to the landing site of the descent module is probably even higher than that most of the time. Once the occupants have landed, ...
23
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3answers
4k views
How hard do you have to throw something off the ISS to make it deorbit?
During Expedition 41 Reid Wiseman and Alexander Gerst replaced a failed pump on the outside of the ISS. I am guessing they took the broken pump back inside the ISS and returned it to earth in one of ...
6
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1answer
122 views
How to calculate the speed of rotation of a given point on the Earth's WGS84 ellipsoid, about its axis?
Launches often happen near the equator in order to take advantage of Earth's rotation speed. This is why more launches are towards the East than towards the West.
How can one calculate the speed of ...
-4
votes
1answer
95 views
benefits of higher rocket speed [closed]
what benefits will a rocket get if it is made to go at a speed close to light... like 3 X 10^6?
if the rocket is supplied with more efficient fuel and designed to obtain lesser drag there are ...
5
votes
1answer
671 views
Maximum velocity achieved by solar sail
What is the maximum (theoretical) velocity that can be achieved by solar-sail technology? Can we get close to the speed of light with that?
