Let represent any nonzero vector. Why is a unit vector, and what is its direction? If ? is the angle thamakes with the + x -axis, explain why is called the direction cosine for that axis.
Solution to 21DQ Here in the first part of the solution we would enquire about Unit Vector and its direction.In the second part we would see why(A) .i is a direction cosine in that axis. PART 1 Step 1. Mathematically a vector is defined as a dot product of its magnitude and its direction. =|A|.A Here A t he component that gives the direction of the vecto. he magnitude is given by | |
Textbook: University Physics
Author: Hugh D. Young, Roger A. Freedman
This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 21DQ from chapter: 1 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 21DQ from 1 chapter was answered, more than 372 students have viewed the full step-by-step answer. University Physics was written by and is associated to the ISBN: 9780321675460. This full solution covers the following key subjects: Vector, direction, axis, its, Cosine. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The answer to “Let represent any nonzero vector. Why is a unit vector, and what is its direction? If ? is the angle thamakes with the + x -axis, explain why is called the direction cosine for that axis.” is broken down into a number of easy to follow steps, and 36 words.