Center of mass

Basics of center of mass and conservation of momentum of a set of masses and an exploding bomb.
For more figures, please check out the “center of mass” and “conservation of momentum” tag.

Edit and compile if you like:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
% Author: Izaak Neutelings (October 2020)
\documentclass[border=3pt,tikz]{standalone}
\usepackage{physics}
\usepackage{tikz}
%\usepackage[outline]{contour} % glow around text
\usetikzlibrary{calc}
\tikzset{>=latex} % for LaTeX arrow head
\usetikzlibrary{patterns}
\usetikzlibrary{decorations.pathmorphing} % for decorate random steps
%\contourlength{2pt}
\colorlet{xcol}{blue!70!black}
\colorlet{vcol}{green!60!black}
\colorlet{myred}{red!65!black}
\colorlet{acol}{red!50!blue!80!black!80}
\tikzstyle{mass}=[line width=0.6,red!30!black,fill=red!40!black!10,rounded corners=1,
                  top color=red!40!black!20,bottom color=red!40!black!10,shading angle=20]
\tikzstyle{rvec}=[->,xcol,very thick,line cap=round]
\tikzstyle{pvec}=[->,myred,very thick,line cap=round]
\tikzstyle{velocity}=[->,vcol,very thick,line cap=round]
\tikzset{
  pics/collision/.style={
    code={
      \draw[line width=0.5*#1,orange,fill=yellow]
        (0:0.20*#1) -- (30:0.06*#1) -- (50:0.25*#1) -- (80:0.10*#1) -- (105:0.32*#1) --
        (140:0.08*#1) -- (170:0.25*#1) -- (190:0.08*#1) -- (220:0.25*#1) --
        (250:0.08*#1) -- (270:0.24*#1) -- (300:0.08*#1) -- (320:0.25*#1) -- (340:0.09*#1) -- cycle;
  }},
  pics/collision/.default=1,
}
\begin{document}
% CENTER OF MASS 2D
\begin{tikzpicture}
  \def\xmax{4.7} % max x axis
  \def\ymax{3.6} % max y axis
  \coordinate (O) at (0,0);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX