/usr/include/camitk-3.3/components/physicalmodel/ is in libcamitk3-dev 3.3.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/camitk-3.3/components/physicalmodel/AnimationMotorAddon.h
/usr/include/camitk-3.3/components/physicalmodel/AnyDecoration.h
/usr/include/camitk-3.3/components/physicalmodel/AtomDC.h
/usr/include/camitk-3.3/components/physicalmodel/AtomDecoration.h
/usr/include/camitk-3.3/components/physicalmodel/ComponentDC.h
/usr/include/camitk-3.3/components/physicalmodel/Decoration.h
/usr/include/camitk-3.3/components/physicalmodel/LoadsManager.h
/usr/include/camitk-3.3/components/physicalmodel/MultiComponentDC.h
/usr/include/camitk-3.3/components/physicalmodel/PMComponentAPI.h
/usr/include/camitk-3.3/components/physicalmodel/PMManagerDC.h
/usr/include/camitk-3.3/components/physicalmodel/StructuralComponentDC.h