Recent content by attriola

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    Find Time: Constant Acceleration

    aim, got it. After several trials with either of the two forms of the equation, I came to the realization that the initial iteration requires this form of the equation: vF=(a*t); va=(vF-vI)/2.0; t=(dx/va); And the subsequent iterations require this form: vF=sqrt((vI*vI)+((2*a)*(dx)))...
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    Find Time: Constant Acceleration

    Thanks again, I came to that realization about 4:30 AM (pst), so got up to re-post but you beat me to it. Of course, it makes sense on several levels. For one thing, I can't use (a) directly anyway, it's meaningless until multiplied by time. In the code I posted, the only thing time was used...
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    Find Time: Constant Acceleration

    aim, I found my error (I think): With time unknown: vF^2 = vI^2 + 2a(sF-sI) (source: http://en.wikipedia.org/wiki/Equations_of_motion) I naively oversimplified the relationship...considerably! (although it still seems intuitively correct). So now, I have to do this: vF=sqrt(vI^2 +...
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    Find Time: Constant Acceleration

    My apologies, aim, I'll keep it descriptive (I hope). The term vF+=a is a short form of vF=vF+a, (a) was previously calculated (just once). Here's what the program does: Initial velocity is defined as: 230.33 (500 mph), there is no need to calculate it since it's known. Distance...
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    Find Time: Constant Acceleration

    Thanks again aim, are you game for a follow-up? In trying to calculate elapsed-time (say, for a mile), I noticed that it looked too high for the velocity I was logging. (500 mph in 100 feet) Using 'average' velocity each time through the loop, (t) is essentially static. This didn't...
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    Find Time: Constant Acceleration

    Thanks, your quite right, I did. Yes, I've since run into that on a thread-search and found a possible solution suggested by Mike W, but tell me if I have it right: Keeping in mind that beginning and ending velocities are known, distance is known, and, as you pointed out, we have constant...
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    Find Time: Constant Acceleration

    Homework Statement Find the time it takes to traverse the distance. Given: *constant velocity *initial acceleration = 0 *ending acceleration= 11176 m/s *distance traversed = 28.96 km (18 miles) Homework Equations velocity: v^2 = v0^2 + 2a(delta x) v = sqrt(v0^2 + 2a(delta x))...
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