A script for solving vector mechanics Ferdinand P. Beer proposed exercises
pip3 install beersolver && beersolver

🤔 Overview

Here are proposed solutions for the exercises listed on the end of the third chapter of the book "Vector Mechanics for Engineers 9° Edition, Ferdinand P.Beer"

The general recommendation for the script was that it needed at least two types of input and at least 2 types of output.

Information about the solved exercises:

• 3C.6

🔨 Installation

Automatic

Issue

pip3 install search-that-hash

then:

beersolver

To run.

Manual Installation

Create folder for the virtual env

mkdir beersolver

Create virtual env

python3 -m venv beersolver

Activate it:

• Linux

source beersolver/bin/activate

• Windows

call beersolver/bin/activate.bat

Install all the necessary packages:

pip3 install -r requirements.txt

Run beersolver to test it:

beersolver

📖 Documentation (How to use tutorial)

OBS.: Throughout this documentation whenever beersolver is referenced it means python3 beersolver.py for those who didn't install it or beersolver to the ones who installed it with setuptools.

Configuration File

To easily run you may just start by creating a skeleton config:

beersolver exercise-three-c-6 -g 

This will create a template with all parameters needed to solve called example.ini as the one below.

[positions]
position_a_x = 0.0
position_a_y = 96.0
position_a_z = 4.0
position_e_x = 90.0
position_e_y = 52.0
position_e_z = 0.0
position_c_x = 120.0
position_c_y = 36.0
position_c_z = 100.0

[lambdas]
lambda_ab_x = 0.7777777777777778
lambda_ab_y = -0.4444444444444444
lambda_ab_z = 0.4444444444444444
lambda_cd_x = -0.7777777777777778
lambda_cd_y = 0.4444444444444444
lambda_cd_z = -0.4444444444444444

[range]
upper_range = 36.0
lower_range = 9.0
step = 1.0

With this created you can now just issue the command and see the result:

beersolver exercise-three-c-6 -i example.ini

This now generates the response on the command prompt. You can change the values from example.ini to change the exercise parameters.

Inline

To solve the exercise using inline mode you may insert all the arguments as parameters, or you wait for the prompt. The program detects if is there any missing argument.

Supplying parameters:

beersolver  exercise-three-c-6 --position_a 0.0 96.0 4.0 --position_e 90.0 52.0 0.0 --position_c 120.0 36.0 100.0 --lambda_ab 7/9 -4/9 4/9 --lambda_cd -7/9 4/9 -4/9 --upper_range
 36 --lower_range 9 --step 1.0 

Waiting for the prompting:

beersolver  exercise-three-c-6

A[x]: 0.0
A[y]: 96.0
A[z]: 4.0
E[x]: 90.0
E[y]: 52.0
E[z]: 0.0
C[x]: 120.0
C[y]: 36.0
C[z]: 100.
Lambda_ab[x]: 7/9
Lambda_ab[y]: -4/9
Lambda_ab[z]: 4/9
Lambda_cd[x]: -7/9
Lambda_cd[y]: 4/9
Lambda_cd[z]: -4/9
upper_range: 36
lower_range: 9
step: 1.0