Recent content by Lance219

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    Friction and turning angle relation

    Determine the radius from front&rear left wheel and distance between them is a geometry problem. suppose front left wheel touch the ground at A, rear left wheel touch ground at B, front wheel's direction line meet rear wheel's direction line at C, then the center of the circle O will satisfy OA...
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    Friction and turning angle relation

    The angle between front left wheel and rear left wheel, the distance between the 2 wheel will determine the radius of your circular movement, provided no drifting occurs. Then ## \omega = \frac v r ##, you have your speed, you have your radius (when the angle you mentioned is determined), then...
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    Friction and turning angle relation

    The way I see it, the angle between the lines of your front and rear wheel tells the car what radius you are asking for, but where the ground condition (friction) and your car's speed will be able to support that is a different issue. You might end up drifting or even worse.
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    I Gravitational force at the Earth's centre

    0. Suppose you have non zero gravity, and at moment 0 you are at rest, by Newton's second law, you will have a non-zero acceleration, but which way? The globe is symmetrical, no direction is more privileged than others. Hence the gravity by Earth at Earth center should be 0.
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    Friction and turning angle relation

    suppose you mean on level ground. $$ \mu N=\frac {m v^2} r $$ $$\mu m g = \frac {m v^2} r$$ $$r = \frac {v^2} {\mu g} $$ so your radius is determined by the static friction constant as well as your car's speed.
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    I What is the derivative of the inverse secant function?

    ## 5x^4=sec y = \frac 1 {cos y} ##, because |cos y| <=1, we have ## |sec y| = |5x^4| = 5x^4 >= 1.##
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    What is the Fascinating World of Physics?

    Thanks, NascentOxygen!
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    What is the Fascinating World of Physics?

    I am Lance. Interested in physics. Looking forward to learning something from your guys.
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