Transcription: Newton's three laws of motion describe the behavior of physical objects. Law number one states that unless acted upon by an external force, an object will remain in its state of constant velocity. On a frictionless pool table, a ball in motion will stay in motion and at a constant speed forever. Law number two states that the change in velocity that a force produces on an object is proportional to both the strength of the force and the mass of the object. A billiard ball will accelerate more when hit with greater force than when hit with less force. A ball with greater mass will accelerate les ...
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