Thornton & Marion, Classical Dynamics, Fifth Edition Chapter 1. Matrices, Vectors, and Vector Calculus Problem 11. Triple scalar product The problem asks you to show that 1) triple scalar product can be written as 2) the product is unaffected by an interchange of operators or by a change in the order. 3) a geometrical interpretation,…

# Category: Classical Mechanics

## Thornton & Marion (5th Edition), Chapter 01, Exercise Problem 10

Thornton & Marion, Classical Dynamics, Fifth Edition Chapter 1. Matrices, Vectors, and Vector Calculus Problem 10. Differentiation of a vector The problem asks you to calculate vector derivatives to get velocity and acceleration of a particle. The problem gives position vector of a particle in a plain elliptical orbit. We should know about calculation of…

## Thornton & Marion (5th Edition), Chapter 01, Exercise Problem 09

Thornton & Marion, Classical Dynamics, Fifth Edition Chapter 1. Matrices, Vectors, and Vector Calculus Problem 09. Vector calculation The problem asks you to evaluate some vector calculation. The problem gives Two vectors 1) 2) We should know about some vector calculus, such as 1) addition and subtraction 2) dot product and cross product Solution

## Thornton & Marion (5th Edition), Chapter 01, Exercise Problem 08

Thornton & Marion, Classical Dynamics, Fifth Edition Chapter 1. Matrices, Vectors, and Vector Calculus Problem 08. An equation of a plane in vector form The problem asks you to show that the given equation is the equation of a plane. This problem assumes 1) be a vector from the origin to a fixed point 2)…

## Thornton & Marion (5th Edition), Chapter 01, Exercise Problem 07

Chapter 1. Matrices, Vectors, and Vector Calculus Problem 07. Scalar Product of two (unit) vectors The problem asks you to 1) Find the vectors describing the diagonals 2) The angle between diagonal vectors This problem assumes A unit cube in the Cartesian (Rectangular) coordinate system We should know about 1) Position vectors 2) Scalar Product…

## Thornton & Marion (5th Edition), Chapter 01, Exercise Problem 06

Thornton & Marion, Classical Dynamics, Fifth Edition Chapter 1. Matrices, Vectors, and Vector Calculus Problem 06. Another proof of the orthogonality condition The problem asks you to prove that Equation (1.15) can be obtained by using the fact that the transformation matrix preserves the length of the line segment. This problem assumes that the coordinate…

## Thornton & Marion (5th Edition), Chapter 01, Exercise Problem 05

Thornton & Marion, Classical Dynamics, Fifth Edition Chapter 1. Matrices, Vectors, and Vector Calculus Problem 05. The determinant of the transformation matrix The problem asks you to show that This problem assumes the transformation matrix to be a two-dimensional orthogonal matrix. You should know about 1) Calculation of a determinant 2) Properties of the orthogonal…

## Thornton & Marion (Fifth Edition), Chapter 01, Exercise Problem 04 Solution

Chapter 01. Matrices, Vectors, and Vector Calculus Problem 04. Transposed and Inverse Matrix The problem asks you to prove the properties of transposed and inverse matrix. You should know about 1) Transposed matrix 2) Inverse matrix Solution (a) Let , then By definition of transpose, Therefore, (b) i) For orthogonal matrices, , so we can…

## Thornton & Marion (Fifth Edition), Chapter 01, Exercise Problem 03 Solution

Chapter 01. Matrices, Vectors, and Vector Calculus Problem 03. Transformation Matrix The problem asks you to find a transformation matrix that satisfying some condition. This problem gives (or assumes) This matrix rotates a rectangular coordinate through an angle of 120 degrees about an axis making equal angles with the original one. You should know about…

## Thornton & Marion (Fifth Edition), Chapter 01, Exercise Problem 02 Solution

Chapter 01. Matrices, Vectors, and Vector Calculus Problem 02. Trigonometric properties of direction cosines Solution For Equation (1.10): Proof) Using Figure 1-4 (a) in the book, let the length of a point P on the line from the origin be , then Therefore, it becomes For Equation (1.11): Proof) In Figure 1-4 (b) in the…