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It will get trickier for interstellar distances. In Newtonian mechanics v = at, so it'd consider rather less than the usual yr to reach c at one g acceleration. But relativity will never allow that, we can only get near c.

Tips on how to go about calculating the dimensions and Electricity specifications for a space-primarily based linear accelerator or railgun to speed up modest probes? five

From the stationary observer's viewpoint the traveler's charge of acceleration would slow since they approached the speed of sunshine. The traveler would see no modify involving their speed along with the velocity of light. Instead they'd practical experience time at an more and more slower fee which might properly result in the gap towards the desired destination to become shorter.

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Certainly, you needn't stage straight up, and TidalWave's assumption that That which you intended is 9.8m/s/s is most likely right - but Notice that even so, his reply provides you with a minimum amount, eg assuming you could potentially transform off gravity as well as the atmosphere (along with the assumptions he mentions at the very best). $endgroup$

James JenkinsJames Jenkins 27.2k2323 gold badges108108 silver badges242242 bronze badges $endgroup$ three four $begingroup$ "1g of thrust" pointed straight up will balance gravity, and lead to you floating. "1g" (as I read it), may be the acceleration due to the Earth's gravity; if that's how you really define it, then your acceleration decreases as you have additional (and 'really feel much less pull') from Earth.

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What's the most important entire body within the photo voltaic program we could meaningfully and precisely alter the orbit of? two

$begingroup$ For those who have the Electricity for a constant 1G thrust, just how long would it get to acquire to your planets inside our solar system? How long for the five nearest photo voltaic devices?

Presented restrictions on acceleration for human Place flight, What exactly are the minimal travel situations within our solar process for authentic powered journeys? 25

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one $begingroup$ @Mark not really legitimate. In spite of everything, in the event you observe points falling in continual gravity, you continue to can not see them transcend pace of light, that means that Newtonian physics isn't going to keep whilst viewed by the ship. $endgroup$

HopDavidHopDavid 16k4444 silver badges8080 bronze badges $endgroup$ 9 twenty $begingroup$ Your "include a little more than the usual yr for each lightyear length" is right for an out of doors observer, but for somebody aboard the ship, the Newtonian model is right for all distances (as calculated before beginning acceleration): Lorentz contraction will shrink the universe through vacation to present the appearance of Newtonian physics. $endgroup$

Mainly because of the time dilation effect, 1G acceleration needs to be enough to travel everywhere in our galaxy in lower than a life span within the viewpoint with the traveler, but not the stationary observer. To here learn more on enough time dilation influence examine Stephen Hawking's "Temporary Historical past of Time"