ReadOasis Step 2
(Part 3)

The first law is about objects at rest and objects in motion. An object continues to move at the same velocity (that is, speed), or it remains at rest unless an external force moves it. An apple will remain on the ground unless someone picks it up. A comet will continue at the same speed and direction through space unless it is pulled by the gravity of a larger object, such as a planet.

Newton by William Bl...