can we "increase" the velocity of rocket , by least 1000 km/ps to reach mars 50 times faster ?? How??

Answer 1

Not without a major change in design. Shipping 50 times the fuel will not give you 50 times the delta-V with a chemical rocket, it will be much, much lower than that, I believe for typical efficiencies, 50* the fuel will get you 4* the delta-V.

To go much faster you need to increase the specific impulse of the engine, which amounts to increasing the speed at which material leaves the nozzle. A chemical rocket is limited by how hot it can make the expanding gas. A nuclear rocket works well because it makes hot hydrogen, which has a higher nozzle velocity at a given temperature than hot water or carbon dioxide. To go beyond those impulses to very high speeds, non-thermal systems like ion drives are more plausible, but they do not generate very much thrust.

Answer 2

If you want to increase your speed 50 times, just get 50 times more fuel to orbit. This will have to be done in multiple launches. You will also need a much larger spacecraft, so that it probably will have to be assembled in the orbit. Then just go - you will be able to have a 50 times longer burn, and this will increase your velocity 50x. Well, not really 50x as you probably have some initial velocity from the orbit... But generally this is a valid solution, albeit prohibitvely expensive.

Other ways are to increase the specific impulse of the engine. Various kinds of nuclear propulsion and ion thrusters seem to be the closest to implementation.

Yeah, I know we already have ion thrusters, but the ion thrust of these ion thrusters is really weak. We need lots of them, and lots of electric energy for them - so it will probably have to become nuclear-electric.

Answer 3

In theory you can accelerate a body to that speed, but you need a big acceleration to do that or to have a constant acceleration for a given period of time. That means that you need a lot of fuel to reach that speed. We still don't have the technology to do that but scientists are researching. Don't forget to consider the amount of acceleration a human body can support. you don't want flat astronauts when you reach mars.

Answer 4

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Answer 5

Scientists are still trying. Fuel cells are the strongest candidate.