Solved: Two vectors, rand s, lie in the xy plane. Their
Chapter , Problem 35(choose chapter or problem)
Two vectors, \(\vec r\) and \(\vec s\), lie in the xy plane. Their magnitudes are 4.50 and 7.30 units, respectively, and their directions are \(320^{\circ}\) and \(85.0^{\circ}\), respectively, as measured counterclockwise from the positive x axis. What are the values of
(a) \(\vec r \cdot \vec s\) and
(b) \(\vec r \times \vec s\)?
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