at rest, stays at rest) momentum -- depends on speed &amp; direction (together velocity) and mass ancient notion of "rest as a natural state" is because of friction natural motion: inertia (without any outside forces) forced motion: moving under the influence of an outside force force -- an action which causes acceleration (pushing a car, gravity, friction) required to change momentum mass -- how much stuff there is (means of resisting acceleration) volume -- how much 3D space is taken up by an object density -- how tightly packed objects are into a given space Newton's Laws Isaac Newton (1643 - 1727) 1) Inertial Law: a body in motion at constant speed remains in that state of motion until acted upon by a net outside force (rest is the "0" motion case) 2) Force Law: rate of change of velocity from an applied net force is in the same direction as, and proportional to, the force, but inversely proportional to the body's mass F = ma 3) Reaction Law: for every applied force, a force of equal strength, but opposite direction, arises So, really the natural motion is a straight line.
(an action; causes; acceleration) Context(an action causes,List([289, 311))):(an action which causes acceleration (; pushing; a car, gravity, friction) (volume -- how much 3D space is taken up by an object density -- how tightly packed objects are into a given space Newton's Laws Isaac Newton (1643 - 1727) 1) Inertial Law; remains; in that state of motion; T:until acted upon by a net outside force) Context(volume -- how much 3 D space is taken up by an object density -- how tightly packed objects are into a given space Newton 's Laws Isaac Newton ( 1643 - 1727 ) 1 ) Inertial Law remains,List([454, 668))):(packed objects; are; into a given space Newton's Laws Isaac Newton (1643 - 1727) 1) (how much stuff; is; ) Context(how much stuff is,List([396, 419))):(inertia (without any outside forces; forced; motion; moving under the influence of an outside force force) Context(inertia ( without any outside forces forced how much stuff is,List([181, 419))):(direction (together velocity) and mass ancient notion of "rest as a natural state; is; because of friction natural motion) (rest; is; the "0" motion case)
an action causes,List([289, 311)) volume -- how much 3 D space is taken up by an object density -- how tightly packed objects are into a given space Newton 's Laws Isaac Newton ( 1643 - 1727 ) 1 ) Inertial Law remains,List([454, 668)) how much stuff is,List([396, 419)) inertia ( without any outside forces forced how much stuff is,List([181, 419))
an action an action which causes acceleration ( volume -- how much 3D space is taken up by an object density -- how tightly packed objects are into a given space Newton's Laws Isaac Newton (1643 - 1727) 1) Inertial Law packed objects how much stuff inertia (without any outside forces direction (together velocity) and mass ancient notion of "rest as a natural state rest
causes pushing remains are is forced is is
acceleration
a car, gravity, friction
in that state of motion T:until acted upon by a net outside force
into a given space Newton's Laws Isaac Newton (1643 - 1727) 1
motion moving under the influence of an outside force force
because of friction natural motion
the "0" motion case