Got a physics question

[Landshark]

my cat's breath smells like catfood.

[Earthworm]

I imagine shooting the gun from the bullet as opposed to shooting the bullet from the gun.

So at a 0° inclination and a barrel height of 5' how long before the bullet hits the ground and what's the bullet's velocity at the point of impact?

[Ricochet]

Andy, that was awesome.

Originally Posted by Earthworm

So at a 0° inclination and a barrel height of 5' how long before the bullet hits the ground and what's the bullet's velocity at the point of impact?

couple seconds, same as if you held out your hand and dropped a penny.

[Royal Tiger]

Gravity affects everything at the same rate. So if you drop a bullet from your hand as the pistol fires, they will strike the ground at the same time.

[Earthworm]

Assuming no air resistance of course

[oab_au]

Originally Posted by Electrophil

But that brings up another question. If the earth spins basically from west toward the east, why do storm systems and clouds basically travel from west toward east? Looks like the earth would spin and the clouds would be stationary above the earth, and appear to travel from east toward west.

I need beer.

The air heats up at the equator, rises, cools, travels towards the poles. The rotational speed of the air, at the equator, is maintained as it moves towards the poles. Because of the smaller diameter of the circle, it is traveling in, it travels faster than the earth.

Just like the skater that pulls their arms in to spin faster.

Harvey.

[Royal Tiger]

Air resistance is relative to the object in motion and velocity. There will be air relative to both objects, so impact will occur at the same time. As the slow moving bullet from your hand is affected by the air, the one from the pistol is being affected by air at a rate relative to the velocity it is traveling through the air.

[Electrophil]

Originally Posted by Mr. Pockets

Electrophil is making it way too complicated. The short answer, assuming that your 'observer' is not in the car with you and assuming that you fire the bullet as you pass by them, is yes.

Are you saying the bullet is going to drop out of the barrel and fall to the ground? How will it even make it out of the barrel?

[BigBlueSVX]

don't think of it as the bullet going out of the barrel, think of it as the barrel uncovering the bullet. From the oberservers perspective, the car will continue to move away, but the bullet will stay in one spot and fall to the ground.

[Ricochet]

Originally Posted by BigBlueSVX

don't think of it as the bullet going out of the barrel, think of it as the barrel uncovering the bullet. From the oberservers perspective, the car will continue to move away, but the bullet will stay in one spot and fall to the ground.

god THANK YOU for understanding the question. I don't see why everybody else can't..

[bwb3]

Somebody should try it with a paintball gun. You can set them to shoot at 200 fps, near top speed of the SVX.
Gene

[Electrophil]

Originally Posted by Ricochet

god THANK YOU for understanding the question. I don't see why everybody else can't..

Probably because no one is going to see a person fire a gun while they are traveling at 800fps.

[subi-crosser]

Originally Posted by Electrophil

Probably because no one is going to see a person fire a gun while they are traveling at 800fps.

300 ft per second is roughly 200 mph. if you borrow a jet from the air force, you can test your 'theroy', about 800 fps. Does a jet shooting a 'round ' from the fromt, run into the bullit and shoot itself down? NO, because the bullet does not know that it is moving at 400 MPH when it leaves the 'tube'..Plus the muzzle velocity. It will continue to move at the muzzle velocity, Plus the speed of...... I see where the reverse question comes from....

[yesmar]

ok my friend on the baseball team for some reason thinks that if u were in space, like out there in a space suit, and you threw a curve ball it would go in a circle. but due to the lack of air and all that kool stuff wouldnt the ball just go the direction that u threw it and spin?

[Hocrest]

Originally Posted by yesmar

ok my friend on the baseball team for some reason thinks that if u were in space, like out there in a space suit, and you threw a curve ball it would go in a circle. but due to the lack of air and all that kool stuff wouldnt the ball just go the direction that u threw it and spin?

Yeah, it is resistance to the air on one side of the ball being higher than the other side of the spinning ball that makes it curve, so in space it would go in a straight line.