the easiest way to open a door is to exert a force on the side of the door opposite the hinge, and to push or pull with a force perpendicular to the door.
(the easiest way to open a door; is; to exert a force on the side of the door opposite the hinge, and to push or pull with a force perpendicular to the door)
the easiest way to open a door
is
to exert a force on the side of the door opposite the hinge, and to push or pull with a force perpendicular to the door