2007-10-25 01:34:26 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Difficult to answer fully as you don't give sufficent information - Assuming the rocket motor is still producing the same forward force, the rocket will increase its acceleration - this is because the mass of the rocket is decreasing, the atmosphere is getting thinner and the gravitational force is getting weaker. However sooner or later the rocket fuel will run out and if the rocket is not clear of the Earth's atmosphere, then it will slow down and fall back to Earth.
2007-10-25 07:45:27 · answer #1 · answered by Anonymous · 0⤊ 0⤋
When a rocket is taking off, the atmosphere is at a higher pressure, and this pressure is reduced as they go up. In addition the friction of the air on the outside of the rocket also decreases.
Upon entering the atmosphere, the rocket encounters the friction and heats up as well as slows down from the encounter.
2007-10-25 01:43:08 · answer #2 · answered by Marvinator 7 · 0⤊ 0⤋
Do you mean, how do they fly as they get higher?
Well, whereas planes, helicopters etc gain lift by forcing air over curved surfaces, rockets work by the much more brute-force method of Newton's third law: every action has an equal and opposite reaction. They throw stuff (gas from the combustion in their chambers) out the back, and that pushes them forward.
As the air gets thinner, the resistance becomes less, and they can go faster.
If you mean how does the fuel burn, it's because they carry oxygen (or oxygenating compounds such as nitrogen tetroxide) which they mix with the hydrogen or other fuel.
2007-10-25 01:45:50 · answer #3 · answered by gvih2g2 5 · 0⤊ 0⤋
They need less and less fuel the further they go into the atmosphere due to less air friction and gravitational pressure. Once in Space needs no fuel because there is no air friction slowing it down and no gravity applied by the earths atmosphere.
2007-10-25 01:44:28 · answer #4 · answered by Hutty 2 · 0⤊ 1⤋
The faster the speed of the rocket, the more heat applies to the surface of the rocket, therefore it is more likely to decay.
2007-10-25 01:47:40 · answer #5 · answered by Hitesh_M 2 · 0⤊ 0⤋
the higher they go the LESS pressure they receive
aside from the temperature changes & resistance decreasing (from less air pressure) i don't think too much else
2007-10-25 01:40:25 · answer #6 · answered by jindivik321 2 · 0⤊ 0⤋
They endure greater and greater pressure.
2007-10-25 01:38:26 · answer #7 · answered by Anonymous · 1⤊ 0⤋