Which of the following statement/s is/are true about base vectors e, and en? 1. Their derivative with respect to time is equal to zero. II. They can be expressed in terms of rectangular coordinates base vectors. III. They serve as the bases for the velocity and acceleration vectors.

Which of the following statement/s is/are true about base vectors e, and en? 1. Their derivative with respect to time is equal to zero. II. They can be expressed in terms of rectangular coordinates base vectors. III. They serve as the bases for the velocity and acceleration vectors.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Graphical Methods

The graphical method is a method of solving equations involving more than one variable using the Cartesian coordinate system. In civil engineering, the use of the graphical method is limited to the problems involving two variables. The graphical method has a great impact in solving the questions regarding engineering mechanics.

Question

Which of the following statement/s is/are true about base vectors e, and eg?
1. Their derivative with respect to time is equal to zero.
II. They can be expressed in terms of rectangular coordinates base vectors.
III. They serve as the bases for the velocity and acceleration vectors.

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