# expressions of the velocity and acceleration vectors

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22. For the case of plane polar coordinate r, theta, write the unit vectors and e_theta in terms of i and j. Hence show that and. By starting with r = re_r, and differentiating, rederive the expressions for the components of the velocity and acceleration vectors.

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#### Solution Summary

It derives the expressions for the components of the velocity and acceleration vectors under the plane polar coordinates.

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