spherical coordinates position vector

by mickry
Tags: coordinates, position, spherical, vector
mickry is offline
Sep11-06, 05:57 PM
P: 6
can anyone help me with this question:
A sphere of unit radius is centered at the origin. points U,V & W on the surface of the sphere have vectors u,v & w. find the position vector of points P&Q on a diameter perp to the plane containing points U,V & W?

can anyone help
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Astronuc is offline
Sep11-06, 09:33 PM
Astronuc's Avatar
P: 21,628
In Cartesian coordinates if the points U, V, W are coplanar, to which position vectors u, v, w point, respectively, what can one do to create two planar vectors? Hint. What is the formula for the vector pointing from U to V? Similarly for V to W or U to W.

Now with two coplanar vectors, how does one find a vector perpendicular to those two?
mickry is offline
Sep12-06, 01:50 PM
P: 6
tripple scaler product?

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