water trampoline with launch image
Azeri
Obviously the type of firearm and bullet, the angle the gun is pointed and the speed of the wind and density of the atmosphere are all factors, but generally, at some point the bullet stops going up and starts responding to gravity and falling back to earth, so I've always wondered how fast it's going as it falls and if it were to land on someone's head, if it would cause damage (or on a windshield. . .) And I wonder how far away it is when it comes down. I wonder if anyone has ever been hit on the head by a random falling bullet. Any comments or responses or anecdotal stories would be amusing and appreciated. (does anyone else out there think about these kind of things???)
Thanks all, for the answers! Glad to know others think about these things. And good luck to you (Bob) with the water vapour collection idea. Sometimes I wonder just how many more principles and inventions are yet to be discovered and invented.
Answer
4-6 inches into the ground?-nice. projectiles can be analysed in terms of there horizontal velocity and there vertical velocity. basically when u shoot a bullet horizontally the horizontal velocity will be decreasing due to air resistance and the vertical velocity will be increasing due to gravity (which is always acting, not just at some arbitrary time). If u shoot a bullet upwards it will only have a upwards velocity which is decreasing because of gravity and air resistance up until a point where it just stop- like when u are at you peak of a jump on a trampoline. It will then just free fall continuing to get faster until it reaches terminal velocity then just continue falling at that speed. this is the basic idea anyway. Just a thing to note is that when u launch a bullet from a gun it spins so that the poi9nted bit is always facing forwards. But when it is falling from the sky it wont have any spin left so it will tumble liek a badly designed paper plane try to fly through the air and will have a more air resistance. As for stories im pretty boring so i dont have any of them in my arsenal as of yet. Of course other people think of things like this, thats how many of the worlds greatest inventions get made.
What im thinking about is, when jets start flying at supersonic speeds (speed of sound, 343m/s) they leave this cool sort of triangular shaped mist around them (water vapour) which is a result of very high pressure water that is just condensing to form water droplets. If you had a device with a arm that spins super fast and condenses the water inside the vessel and then collects the water at the bottom for you, to drink mayb? which would be useful in a desert for example. anyway thats what im gonna spend my time researching at some point in time.
4-6 inches into the ground?-nice. projectiles can be analysed in terms of there horizontal velocity and there vertical velocity. basically when u shoot a bullet horizontally the horizontal velocity will be decreasing due to air resistance and the vertical velocity will be increasing due to gravity (which is always acting, not just at some arbitrary time). If u shoot a bullet upwards it will only have a upwards velocity which is decreasing because of gravity and air resistance up until a point where it just stop- like when u are at you peak of a jump on a trampoline. It will then just free fall continuing to get faster until it reaches terminal velocity then just continue falling at that speed. this is the basic idea anyway. Just a thing to note is that when u launch a bullet from a gun it spins so that the poi9nted bit is always facing forwards. But when it is falling from the sky it wont have any spin left so it will tumble liek a badly designed paper plane try to fly through the air and will have a more air resistance. As for stories im pretty boring so i dont have any of them in my arsenal as of yet. Of course other people think of things like this, thats how many of the worlds greatest inventions get made.
What im thinking about is, when jets start flying at supersonic speeds (speed of sound, 343m/s) they leave this cool sort of triangular shaped mist around them (water vapour) which is a result of very high pressure water that is just condensing to form water droplets. If you had a device with a arm that spins super fast and condenses the water inside the vessel and then collects the water at the bottom for you, to drink mayb? which would be useful in a desert for example. anyway thats what im gonna spend my time researching at some point in time.
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