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April 18th, 2014, 06:34 AM   #1
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Obtaining angular velocity given linear velocity and center of rotation 3D

Hi,

Supposed I'm given linear velocity and center of rotation in 3D. Can I obtain the angular velocity?

I tried using:

v = w x r

v (1x3 vector) = A (3x3 matrix) * w (1x3 vector)

then take the inverse of the 3x3 matrix A and

w = inv A * v

But the inverse of A gave an error.

Why is this so? Are there other ways?

I have the linear velocity and xyz coordinates of its location.

Thanks.
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