(c) Use both methods to calculate ā · b for each of the following cases: (i) if ā = (-4, –9) and b= (-1,2) (ii) if Jā| = 10, Oa = 30° and |b| = 2, 0, = 120°. Note that both angles are defined with respect to +x-axis.
(c) Use both methods to calculate ā · b for each of the following cases: (i) if ā = (-4, –9) and b= (-1,2) (ii) if Jā| = 10, Oa = 30° and |b| = 2, 0, = 120°. Note that both angles are defined with respect to +x-axis.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter6: Energy Of A System
Section6.3: The Scalar Product Of Two Vectors
Problem 6.3QQ: Which of the following statements is true about the relationship between the dot product of two...
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(b) Summarize the two ways you calculate a scalar product (also called a dot product).
(c) Use both methods to calculate ~a ·
~b for each of the following cases:
(i) if ~a = (−4, −9) and ~b = (−1, 2)
(ii) if |~a| = 10, θa = 30◦ and |
~b| = 2, θb = 120◦
. Note that both angles are defined
with respect to +x-axis.
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