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Spineker
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Posted - 2008.06.05 21:24:00 -
[1]
If you fired a continuous beam laser in space powerful enough to cut through armor would it exert force on the firing ship and push it away?
If you fired a firearm in space would the recoil velocity be equal to the speed of the bullet or would mass absorb most of the force from the firearms recoil and the person would only feel a minor fraction of the velocity of the bullet?
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Spineker
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Posted - 2008.06.05 21:24:00 -
[2]
If you fired a continuous beam laser in space powerful enough to cut through armor would it exert force on the firing ship and push it away?
If you fired a firearm in space would the recoil velocity be equal to the speed of the bullet or would mass absorb most of the force from the firearms recoil and the person would only feel a minor fraction of the velocity of the bullet?
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Fink Angel
The Merry Men
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Posted - 2008.06.05 21:29:00 -
[3]
Edited by: Fink Angel on 05/06/2008 21:45:25 1) Probably only a small amount if it's anything like the effect of an Ion Engine: http://nmp.nasa.gov/ds1/tech/sep.html
"That means that the thrust is very very low. If you rest a piece of paper on your hand, the paper pushes on your hand about as hard as the ion engine pushes on the spacecraft!"
2) I don't think the mass would "absorb" any of the force, but you'd get an equal and opposite reaction that is relative(*) to the masses of both the bullet and the gun. Ie the gun would be (say) 1000 times the mass of the bullet so recoil at 1/1000th the speed.
(*) Edit: For "relative" read "directly proportional"
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Fink Angel
The Merry Men
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Posted - 2008.06.05 21:29:00 -
[4]
Edited by: Fink Angel on 05/06/2008 21:45:25 1) Probably only a small amount if it's anything like the effect of an Ion Engine: http://nmp.nasa.gov/ds1/tech/sep.html
"That means that the thrust is very very low. If you rest a piece of paper on your hand, the paper pushes on your hand about as hard as the ion engine pushes on the spacecraft!"
2) I don't think the mass would "absorb" any of the force, but you'd get an equal and opposite reaction that is relative(*) to the masses of both the bullet and the gun. Ie the gun would be (say) 1000 times the mass of the bullet so recoil at 1/1000th the speed.
(*) Edit: For "relative" read "directly proportional"
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ReaperOfSly
Lyrus Associates The Star Fraction
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Posted - 2008.06.05 21:41:00 -
[5]
Originally by: Spineker If you fired a continuous beam laser in space powerful enough to cut through armor would it exert force on the firing ship and push it away?
If you fired a firearm in space would the recoil velocity be equal to the speed of the bullet or would mass absorb most of the force from the firearms recoil and the person would only feel a minor fraction of the velocity of the bullet?
1. It would exert a light force simply by the impact of photons, because photons have momentum. The greater force would be exerted by the armour plating being vaporised and causing a jet of gas to shoot outwards like a thruster.
2. The recoil velocity would not be equal to the velocity of the bullet unless the bullet and the gun had equal mass. The recoil momentum would be equal to the momentum of the bullet. Momentum is defined as mass * velocity. __________________________
Quote: ...bored, skint, no charter, and a ship that looks like an explosion in a girder factory...
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ReaperOfSly
Lyrus Associates The Star Fraction
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Posted - 2008.06.05 21:41:00 -
[6]
Originally by: Spineker If you fired a continuous beam laser in space powerful enough to cut through armor would it exert force on the firing ship and push it away?
If you fired a firearm in space would the recoil velocity be equal to the speed of the bullet or would mass absorb most of the force from the firearms recoil and the person would only feel a minor fraction of the velocity of the bullet?
1. It would exert a light force simply by the impact of photons, because photons have momentum. The greater force would be exerted by the armour plating being vaporised and causing a jet of gas to shoot outwards like a thruster.
2. The recoil velocity would not be equal to the velocity of the bullet unless the bullet and the gun had equal mass. The recoil momentum would be equal to the momentum of the bullet. Momentum is defined as mass * velocity. __________________________
Quote: ...bored, skint, no charter, and a ship that looks like an explosion in a girder factory...
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Spineker
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Posted - 2008.06.05 21:44:00 -
[7]
Cool thanks guys interesting
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Spineker
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Posted - 2008.06.05 21:44:00 -
[8]
Cool thanks guys interesting
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Surfin's PlunderBunny
Sebiestor tribe
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Posted - 2008.06.05 23:02:00 -
[9]
Minmatar ships should be like pinballs
() () (â;..;)â (")(") |
Havok Dryke
Golden Gavel Enterprises The Cooperative
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Posted - 2008.06.05 23:10:00 -
[10]
If a tree falls on a mime in a forest and no-one is around to hear it, does anyone care?
The customer is always right... what if he insists that he's wrong?
If 4 out of 5 people suffer from diarrhea does that mean the fifth one enjoys it?
If toast always lands butterside down, and cats always land on their feet, what would happen if you strapped toast to a cats back and dropped it?
If you choke a smurf, what colour will it turn?
If a man with multiple personalities threatens to commit suicide, is it considered a hostage situation?
Can an oriental person become disoriented?
If olive oil is made from squeezed olives, then what is baby oil made from? ---
Kaboom: The process by which large objects are broken down into many small objects.
Originally by: Alz Shado Chribba doesn't mine Veldspar -- the ore offers itself to him in tribute.
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