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  [Math] Kinetic energy of impact between two moving objects  (Read 18078 times)
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Offline BurntPizza

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« Reply #30 - Posted 2014-05-13 19:02:39 »

Also factor in the fact that nukes are chump change compared to anti-matter projectiles, depending on how far in the future the game is. And railgun launched kinetic vehicles are just pieces of metal and some energy, can't get much cheaper than that.

I also don't know what level of realism you want to retain in the mechanics themselves, for instance, lasers (as in NIF scale plus) are probably effective even at quite a distance, depending on your optics technology etc, and have very little latency. (Although if the kinetic missiles are going .99c then that argument is irrelevant)
Offline theagentd
« Reply #31 - Posted 2014-05-13 20:32:30 »

Lasers have a pretty heavy damage falloff in the real world. Double the distance and the laser suddenly heats up a 4x as large area on the target. Well, most of this stuff's just balancing issues. xd

Myomyomyo.
Offline Roquen

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« Reply #32 - Posted 2014-05-14 06:58:16 »

And exactly how much energy is required to get that .99c ?
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Offline ags1

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« Reply #33 - Posted 2014-05-14 10:07:07 »

How much energy are you putting in the laser? A 0.99c peashooter or a 2 zillion watt laser, both would need the same input energy. The difference would be the pea would not diffuse with distance.

Offline delt0r

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« Reply #34 - Posted 2014-05-14 15:37:30 »

A perfect antimatter drive puts all the mass energy of the antimatter/matter into kinetic energy. So a 99% c with a gamma of 7 means that a 1 kg projectile needs 7kg of matter/antimatter to accelerate to that speed.

That is 6x10^17J or a 1GW power plant running for 20 years.

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Offline Roquen

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« Reply #35 - Posted 2014-05-14 17:18:43 »

antimatter: nice one.  Make it part of the missile so even if it hasn't reached top speed...it give an extra bang?  Engineering problem that.
Offline pitbuller
« Reply #36 - Posted 2014-05-17 19:03:03 »

A perfect antimatter drive puts all the mass energy of the antimatter/matter into kinetic energy. So a 99% c with a gamma of 7 means that a 1 kg projectile needs 7kg of matter/antimatter to accelerate to that speed.

That is 6x10^17J or a 1GW power plant running for 20 years.
Half of the energy is released as neutrinos and there is no way you can aim those. So not 100% goes to kinectic energy drive.
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