Physics — Box on a Conveyor Belt
Friction drives the box along with the belt.
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title "Box on a conveyor belt"
surface "Conveyor belt"
body Box at 320,210 size 110,80 label "Box"
force W on Box vector 0,150 color red label "Weight"
force N on Box vector 0,-150 color blue label "Normal"
force f on Box vector 120,0 color green label "Friction (drives box)"