Vector a has magnitude 3√2, vector b has magnitude 5 and the angle between a and b is 135°. What is the value of a.b ?

Physics for Scientists and Engineers
10th Edition
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Vectors
Section: Chapter Questions
Problem 41AP: A vector is given by R=2i+j+3k. Find (a) the magnitudes of the x, y, and z components; (b) the...
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Vector a has magnitude 3√2, vector b has magnitude 5 and the angle between a and b is 135°. What is the value of a.b ?

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