Physics Question: If I'm on a hypothetical train going 100 miles an hour... Answered
Royalesteel recently posted a question in the forums asking if it would be possible to use a K'Nex gun to shoot a GPS tracker onto a moving truck in front of his car. For a moment, I thought that this would be impossible, as you would need a gun that can shoot faster than the speed of the car, but this isn't the case, is it?
Say you're on a hypothetical train that goes 100 miles an hour, and you have a hypothetical gun that shoots a bullet at 100 miles an hour. At first, I thought that this would mean that the bullet shot from the gun would be at a standstill (it would seem that way to you, I mean), but I think that it would really shoot away from you at 100 miles an hour. Total, it would be traveling at 200 mph, I guess.
So, ignoring wind resistance, all you would need is a gun that can shoot for a distance longer than the distance that the cars would travel in the amount of time that the projectile would need to get to the forward car, right?