Topic 2: Planetary Orbits Newton's First Law of Motion states that an object at rest will tend to stay at rest and an object in motion will tend to stay in motion in a straight line, unless acted upon by an external, unbalanced force.
(Topic 2; states; that an object at rest will tend to stay at rest and an object in motion) Context(Topic 2 states,List([0, 61))):(an object at rest; will tend; to stay at rest) (an object at rest; to stay; at rest)
Topic 2 states,List([0, 61))
Topic 2 an object at rest an object at rest
states will tend to stay
that an object at rest will tend to stay at rest and an object in motion
to stay at rest
at rest