Physics of a Merry-go-round

exchemist said:
Yes, I think so. That seemed to be all about proving the gun can't fire a bullet so that it moves IN A CURVE (apart, presumably from the shallow curve towards the ground that all bullets follow, due to gravity). This is about motion in a straight line. So not in conflict with what the video shows.

What we're all saying (now that my initial error has been pointed out to me) is that the straight line in question does not pass through the centre of the merry-go-round. In fact, the motion of the figure implies the trajectory of the ball or bullet will be at an angle of around 50-60% to a line passing through the centre. (it's impossible to be more accurate without being able to stop or slow down the motion to measure it better.)
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If the muzzle is pointed in the direction of the center when the bullet leaves the muzzle, what causes the bullet to veer off course? What force causes the bullet to change trajectory from hitting the center every time?
 
Motor Daddy said:
HOWEVER, when the blue guy fires his gun the round starts traveling towards the center (the red guy), but the red guy is at the center and he is not traveling away from where he is, and the bullet continues to travel in the direction it was fired, so the blue guy's bullet will hit the red guy every time, as long as the bullet has enough velocity to make it to the red guy and hit him.
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This is not true. Did you read this?
RJBeery said:
Take the blue man off of the merry-go-round and put him on a train whizzing past the playground. He shoots just as he has red in his sights...do we expect red to be hit by that bullet?
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Motor Daddy said:
If the muzzle is pointed in the direction of the center when the bullet leaves the muzzle, what causes the bullet to veer off course? What force causes the bullet to change trajectory from hitting the center every time?
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It is called "Coriolis", Daddy-O. You should try enrolling in a physics class, now that you are retired.
 
Tach said:
It is called "Coriolis", Daddy-O. You should try enrolling in a physics class, now that you are retired.
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I am retired, so I have much time to spend teaching you physics the proper way. It's terrible what Einstein did to you!

Oh, that Coriolis thingy you're talking about, that doesn't occur in the preferred frame because I know the trajectory of the bullet and each guy.
 
Motor Daddy said:
I am retired, so I have much time to spend teaching you physics the proper way. It's terrible what Einstein did to you!
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Well, he was one of the greatest physicists ever, I'd rather learn from him than from the resident crackpot.

Oh, that Coriolis thingy you're talking about, that doesn't occur in the preferred frame because I know the trajectory of the bullet and each guy.
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It is refreshing to see that your ignorance extends equally to classical physics. So, you aren't a nutter only when it comes to Einstein but also with respect to Newton. Way, to go, Daddy-O!
 
Motor Daddy said:
There needs to be a force to change the trajectory of a bullet, do you understand what force is?
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Yep. There's no force, and the bullet travels in a straight line. The bullet's trajectory is a straight line based on the muzzle velocity of the gun and (here's the part you missed) the original motion of the gun. That straight line does not go directly towards the center; it goes in a direction that is the sum of those two velocities.
 
Tach said:
It is refreshing to see that your ignorance extends equally to classical physics. So, you aren't a nutter only when it comes to Einstein but also with respect to Newton. Way, to go, Daddy-O!
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I'm wiping the whole damn thing out and starting from scratch! If it works I use it, if not...file 13. Sorry, SR didn't survive.
 
Tach said:
You should try enrolling in a physics class, now that you are retired.
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Last time, I could not focus in physics class. Because it was like this:

[video=youtube;uhiCFdWeQfA]http://www.youtube.com/watch?v=uhiCFdWeQfA[/video]



Now, its a different teacher, but I still cannot focus. :rolleyes:

sexy-teacher-2.jpg



I think if you are my teacher (in classroom), I will be able to focus.
 
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