What is not true about a unit vector, e.g., u? dimensionless. a. It is b. Its magnitude is one. c. It always points in the direction of positive X-axis. d. It always points in the direction of vector A.

What is not true about a unit vector, e.g., u? dimensionless. a. It is b. Its magnitude is one. c. It always points in the direction of positive X-axis. d. It always points in the direction of vector A.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.59P: Given r=4i6j+2km (position vector) F=20i+40j30kN (force vector) =0.8j+0.6k (dimensionless unit...

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Question

3. What is not true about a unit vector, e.g., u₁?
a. It is dimensionless.
b. Its magnitude is one.
c. It always points in the direction of positive X-axis.
d. It always points in the direction of vector A.

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