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Old 08-14-2015, 12:57 PM   #21
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chris 5.0 did that picture with photoshop, you can tell it is immediately but here is the original photo. also i think i could do the no hand thing long enough to grab a picture real quick. max out the steering damper and hold on tight with my legs. idk i'll have to try it

https://www.facebook.com/photo.php?f...type=3&theater
Wouldn't letting go of the throttle, midlean, cause a sudden deceleration?
That would likely lead to increasing lean angle and turn radius, maybe lowside...

Unless you had a throttle lock to hold steady throttle, but you'd have to have some pretty big to lock the throttle while dragging a knee.
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Old 08-14-2015, 12:59 PM   #22
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Quote:
Originally Posted by bumblebee View Post
Wouldn't letting go of the throttle, midlean, cause a sudden deceleration?
That would likely lead to increasing lean angle and turn radius, maybe lowside...

Unless you had a throttle lock to hold steady throttle, but you'd have to have some pretty big to lock the throttle while dragging a knee.
Well here comes Debbie Downer
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Old 08-14-2015, 01:06 PM   #23
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Fake force or imaginary force is a term used in my college physics courses. Then again, I am state school educated. Maybe they don't teach it in those fancy colleges.
But they're not fake or imaginary. It's silly to call them such. I've never heard them referred to as that and it can only cause confusion. I don't have no fancy school edumacation--I'm a product of the third ward. Even without all the fancy learnin, we still got a far better education than one that involves "fake forces". My dynamics professor is rolling in his grave right now.
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Old 08-14-2015, 01:14 PM   #24
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Well here comes Debbie Downer
Sorry I thought this was a thread about motorcycle physics, my bad
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Old 08-14-2015, 02:42 PM   #25
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Sorry I thought this was a thread about motorcycle physics, my bad
It's about hands free racing
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Old 08-14-2015, 02:51 PM   #26
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Quote:
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But they're not fake or imaginary. It's silly to call them such. I've never heard them referred to as that and it can only cause confusion. I don't have no fancy school edumacation--I'm a product of the third ward. Even without all the fancy learnin, we still got a far better education than one that involves "fake forces". My dynamics professor is rolling in his grave right now.
So you are saying in his fuzzy dice hanging in a car example there is a real force pushing the dice backwards?
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Old 08-14-2015, 03:03 PM   #27
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So you are saying in his fuzzy dice hanging in a car example there is a real force pushing the dice backwards?
Inertia?
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Old 08-14-2015, 03:04 PM   #28
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Inertia?
A/C on high
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Old 08-14-2015, 03:16 PM   #29
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So you are saying in his fuzzy dice hanging in a car example there is a real force pushing the dice backwards?
There are two ways to approach this problem. One way is to observe from outside of the car (inertial reference frame) and the other is to observe from inside the car (non-inertial reference frame). The term "fake force" is ridiculous--the need for a convention like this in a non-inertial reference frame is due to the presence inertial forces and it should be referred to as such to avoid confusion. Calling it a "fake force" doesn't help anyone understand anything and only lends itself to greater confusion when the concept of inertia is introduced. There is no need for the author to describe things in a non-inertial reference frame here, but even though he chose to, he should've been clear about what inertial forces are and where they come from.
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Old 08-14-2015, 03:20 PM   #30
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Quote:
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There are two ways to approach this problem. One way is to observe from outside of the car (inertial reference frame) and the other is to observe from inside the car (non-inertial reference frame). The term "fake force" is ridiculous--the need for a convention like this in a non-inertial reference frame is due to the presence inertial forces and it should be referred to as such to avoid confusion. Calling it a "fake force" doesn't help anyone understand anything and only lends itself to greater confusion when the concept of inertia is introduced. There is no need for the author to describe things in a non-inertial reference frame here, but even though he chose to, he should've been clear about what inertial forces are and where they come from.
You have to remember the author is writing to the "WIRED" audience
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Old 08-14-2015, 03:20 PM   #31
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Old 08-14-2015, 03:28 PM   #32
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So when the definition of inertial force says it's an imaginary or fake force you shouldn't introduce it as a fake force?
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Old 08-14-2015, 03:30 PM   #33
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Tell us about gravity Repth. How does it work? How is it made?

This is entertaining.
Scientists theorized that incredibly massive objects would tend to pull other objects towards them. This theory went unconfirmed for many years, until scientists were finally able to study the gravitational field created by an object more massive than they ever thought possible, otherwise known as your mom.
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Old 08-14-2015, 03:34 PM   #34
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So when the definition of inertial force says it's an imaginary or fake force you shouldn't introduce it as a fake force?
Only...the definition doesn't say that.
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Old 08-14-2015, 03:36 PM   #35
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Old 08-14-2015, 03:37 PM   #36
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Scientists theorized that incredibly massive objects would tend to pull other objects towards them. This theory went unconfirmed for many years, until scientists were finally able to study the gravitational field created by an object more massive than they ever thought possible, otherwise known as your mom.
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Old 08-14-2015, 03:38 PM   #37
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So when the definition of inertial force says it's an imaginary or fake force you shouldn't introduce it as a fake force?
That is a very unfavorable definition. I prefer another definition:

"An apparent force, proportional to a body's mass, that appears to affect the body within a noninertial frame but is absent from the point of view of an inertial frame. Centrifugal forces and Coriolis forces are inertial forces."

To call it a fake force is so misleading, as if there is not actually a reason for the dice moving backwards. The idea of a "fake force" only exists because we introduced the convention of a non-inertial reference frame, which sometimes makes things easier to calculate mathematically but rarely ever makes them easier to understand. When you call it a fake force you are not making the connection to why we include that term at all. I think that is very misleading.
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Old 08-14-2015, 03:40 PM   #38
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Only...the definition doesn't say that.
Many of them actually do, apparently. That is definitely not the way that I was taught and only serves to complicate the distinction between inertial and non-inertial reference frames.
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Old 08-14-2015, 03:45 PM   #39
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Many of them actually do, apparently. That is definitely not the way that I was taught and only serves to complicate the distinction between inertial and non-inertial reference frames.
Interesting. I don't remember ever seeing one that described it that way, but I do remember being taught that it is sometimes referred to as a fake force...He would mention it a lot when he talked about centrifugal force too, which is not really a force when you are using an inertial frame of reference.
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Old 08-14-2015, 03:48 PM   #40
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http://dictionary.reference.com/browse/inertia+force

Inertia force 1.
an imaginary force supposed to act upon an accelerated body, equal in magnitude and opposite in direction to the resultant of the real forces
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