6 articles trouvés pour ce sujet.
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The parameterisation of of a curve |
2014-04-01 |
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Eunice pose la question :
Let C be the path along the curve given by y−80=−5x2 that moves from the point (5,−45) to the point (0,80).
Find r(t) the parameterisation of C in that direction as t∈[0,5]. How am I suppose to find the parametric of both x and y?
can I let x=t, then y=-5t^2+80? thanks
Penny Nom lui répond. |
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Dropping supplies from an airplane |
2013-02-14 |
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Claire pose la question :
An airplane flying at an altitude of 3500 feet is dropping supplies to researchers on an island. The path of the plane is parallel to the ground at the time the supplies are released and the plane is traveling at a speed of 300 mph.
a) write the parametric equations that represent the path of the supplies
c)How long will it take for the supplies to reach the ground?
d) how far will the supplies travel horizontally before they land?
Penny Nom lui répond. |
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The parameterization of a parabola |
2012-04-27 |
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Shawna pose la question :
I am having problems finding the parameterization of a parabola. The question I was given is: Find the work done if a particle moves from the points (-2,4) to (1,1) along the parabola y=x^2, while subject to the vector force of F=(x^3y,x-y). So how would I start with finding the parameterization of a parabola?
Penny Nom lui répond. |
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Parameterization of a curve |
2009-01-10 |
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stephanie pose la question :
Give parameterizations r(t)=x(t)i + y(t)j for the part of the parabola y=2x-x^2, from (2,0) to (0,0). Sketch the curve using arrows to show direction for increasing t.
Essentially, i want to know how to determine the direction a particle is moving in for any curve, i have a vague idea using r'(t). Also, how do i parameterize? x=? and y=?
Ans: x=2-t, y=2(2-t)-(2-t)^2
Harley Weston lui répond. |
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Parameters |
2006-09-15 |
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Chase pose la question :
What is the meaning of the word "parameters" when used in reference to Algebra.
Penny Nom lui répond. |
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The Left Side of a Parabola. |
1998-10-20 |
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Shay pose la question :
Find the parametrized equation for the left half of the parabola with the equation: Y=x^2-4x+3
Chris Fisher lui répond. |
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