Shooting a bullet up into the air

  • Thread starter Thread starter Towk667
  • Start date Start date
  • Tags Tags
    Air Bullet
AI Thread Summary
Shooting a bullet straight up can be dangerous when it falls back down, as it reaches a terminal velocity of about 90 m/s (200 mph), similar to that of a typical bullet. Although the bullet will not return at the same speed it was fired due to air resistance, its terminal velocity is still lethal. Studies indicate that bullets can cause serious injury or death upon impact when they descend from such heights. The potential danger is significant, emphasizing the risks associated with firing bullets into the air. Overall, shooting a bullet upwards poses a serious safety hazard.
Towk667
Messages
16
Reaction score
0
Given that there is no wind, if you shoot a bullet straight up, when it comes back down will it be going fast enough to kill someone? I know it won't be going as fast as it was leaving the barrel of the gun because of air resistance on its trip back down, but I'm just wondering if it would still be dangerous.
 
Physics news on Phys.org
Try:
http://lmgtfy.com/?q=terminal+velocity+bullet

From:
http://en.wikipedia.org/wiki/Terminal_velocity#Examples:
Higher speeds can be attained if the skydiver pulls in his or her limbs (see also freeflying). In this case, the terminal velocity increases to about 320 km/h (200 mph or 90 m/s),[2] which is also the terminal velocity of the peregrine falcon diving down on its prey.[3] And the same terminal velocity is reached for a typical 150 grain bullet traveling in the downward vertical direction — when it is returning to Earth having been fired upwards, or perhaps just dropped from a tower — according to a 1920 U.S. Army Ordnance study.[4]

Also:
https://www.physicsforums.com/showthread.php?t=14560
 
Thanks:approve:
 
I think it's easist first to watch a short vidio clip I find these videos very relaxing to watch .. I got to thinking is this being done in the most efficient way? The sand has to be suspended in the water to move it to the outlet ... The faster the water , the more turbulance and the sand stays suspended, so it seems to me the rule of thumb is the hose be aimed towards the outlet at all times .. Many times the workers hit the sand directly which will greatly reduce the water...
Back
Top