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April 19, 2014

Homework Help: Physics

Posted by Rachel on Friday, May 25, 2012 at 2:56pm.

A particle travels counterclockwise around the origin at constant speed in a circular path that has a diameter of 2.50 m, going around twice per second. Point Q is on the path halfway between points P and R, which lie on the x axis and the y axis, respectively. State the following velocites as vectors in polar notation. (a) What is the particle's average velocity over the interval PR? (b) What is its average velocity over the interval PQ? (c) What is its instantaneous velocity at point P?

P coordinates: (1.25, 0)
R coordinates: (0, 1.25)
Q is directly between the two

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