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Old 08-14-2015, 04:41 PM   #61
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Ha. Ok.
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Old 08-14-2015, 04:41 PM   #62
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Old 08-14-2015, 04:44 PM   #63
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I don't understand your language. But then again, there are zero formulas or theories that support what you're saying.
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Old 08-14-2015, 04:45 PM   #64
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Are you in Nobel laureate?
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Old 08-14-2015, 04:47 PM   #65
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Old 08-14-2015, 04:49 PM   #66
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Old 08-14-2015, 04:50 PM   #67
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Old 08-14-2015, 04:53 PM   #68
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Do you understand vectors? The car accelerates and pulls the dice forward. The string as to be at an angle to where the horizontal force provided by the strings tension to be equal to the force the car is putting on the string in the horizontal axis.

No force is pushing it back because it only looks like it moves backwards to someone sitting it the car but to anyone outside the car the dice will only move forward.
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Old 08-14-2015, 04:54 PM   #69
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Quote:
Originally Posted by Repth View Post
Gravity.
This is true, and through out the cars acceleration the vertical component will be equal to the mass times the acceleration due to gravity and the horizontal component will be equal to the mass of the dice times by the acceleration of the car.
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Old 08-14-2015, 04:55 PM   #70
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Old 08-14-2015, 04:57 PM   #71
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Quote:
Originally Posted by maxgs View Post
Interesting article on motorcycle physics basics from Wired magazine of all places...

HOW DO MOTORCYCLES LEAN SO FAR WITHOUT TIPPING OVER?

http://www.wired.com/2015/08/motorcy...thout-tipping/
Wait... You mean it has nothing to do with not running out of grip?

Shellnut, I think you know the answer to you own question. The dice only stay still when the car is at a constant speed and in a straight line. Otherwise they will always be swinging on way or another depending on which direction the car is pulling them in.
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Old 08-14-2015, 04:58 PM   #72
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Old 08-14-2015, 04:59 PM   #73
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Old 08-14-2015, 05:05 PM   #74
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Quote:
Originally Posted by Shelnutt View Post
No im talking about the force that caused the dice to move back upon acceleration, subsequently putting tension on the string
The dice don't move back. The car moves forward. The dice want to stay still because of inertia. The dice eventually have to move forward because the string is tied to the car, which has more mass plus friction working in its favor

If you slam on the brakes the dice want to continue on their path also because of inertia
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Old 08-14-2015, 05:07 PM   #75
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Old 08-14-2015, 05:09 PM   #76
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Centrifugal force is an imaginary force only in that, it isn't a force. It's an effect of inertia.
It's effects are not imaginary is just not a force.
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Old 08-14-2015, 05:10 PM   #77
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Quote:
Originally Posted by Repth View Post
This concept of wanting to continue doing what they are currently doing is called inertia.
And if it were possible to be motionless in space, they would remain in place because of inertia. Being motionless is "doing what they are currently doing"
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Old 08-14-2015, 05:12 PM   #78
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Quote:
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The dice don't move back. The car moves forward. The dice want to stay still because of inertia. The dice eventually have to move forward because the string is tied to the car, which has more mass plus friction working in its favor

If you slam on the brakes the dice want to continue on their path also because of inertia
An easy way to make two 90 degree component forces that oppose the original force vector of the string. The only actual forces are gravity and the string, the angle of vector force of the string is variable with changing mass of the dice and acceleration of the car. Add a fake force and you can determine the strings vertical and horizontal force vector components.
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Old 08-14-2015, 05:12 PM   #79
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Old 08-14-2015, 05:12 PM   #80
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