Physics — Free-body: hot-air balloon
Upthrust exceeds weight as the balloon rises against drag.
Make it your own.
title "Hot-air balloon rising"
body B at 360,260 size 140,140 label "balloon"
force U on B vector 0,-190 color blue label "upthrust"
force W on B vector 0,150 color red label "weight"
force D on B vector 0,40 color teal label "drag"