Work & energy

Edit and compile if you like:

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% Author: Izaak Neutelings (September 2020)
% Inspiration: https://tex.stackexchange.com/questions/25531/adding-underbrace-in-tikz
\documentclass[border=3pt,tikz]{standalone}
\usepackage{physics}
\usepackage{tikz}
\usetikzlibrary{calc} % for pic
\usetikzlibrary{arrows.meta}
\usetikzlibrary{patterns}
\usetikzlibrary{angles,quotes} % for pic
\tikzset{>=latex} % for LaTeX arrow head
\colorlet{myred}{red!65!black}
%\colorlet{mylightblue}{blue!20}
\colorlet{mydarkblue}{blue!30!black}
\colorlet{xcol}{blue!70!black}
\colorlet{vcol}{green!70!black}
\colorlet{acol}{red!50!blue!80!black!80}
\tikzstyle{ground}=[preaction={fill,top color=black!10,bottom color=black!5,shading angle=20},
                    fill,pattern=north east lines,draw=none,minimum width=0.3,minimum height=0.6]
\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{vector}=[->,very thick,xcol,line cap=round]
\tikzstyle{force}=[->,myred,thick,line cap=round]
\tikzstyle{Fproj}=[force,myred!40]
\tikzstyle{mydashed}=[dash pattern=on 2pt off 2pt]
\tikzstyle{smallarrow}=[{Latex[length=2,width=2]}-{Latex[length=2,width=2]}]
\newcommand{\vbF}{\vb{F}}
\def\tick#1#2{\draw[thick] (#1) ++ (#2:0.1) --++ (#2-180:0.2)} %0.03*\xmax
\begin{document}
% WORK HORIZONTAL
\begin{tikzpicture}
  \def\W{2.7} % ground width
  \def\D{0.2} % ground depth
  \def\h{0.8} % mass height
  \def\w{1.0} % mass width
  \draw[ground] (-0.3*\W,0) rectangle++ (\W,-\D);
 
 
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