Motion in One Dimension

Motion in one dimension refers to movement along a straight line, where an object’s position changes over time. In Newtonian mechanics, key concepts include speed (how fast something moves), velocity (speed with direction), and acceleration (the rate of change of velocity). Newton’s laws explain how forces affect motion: an object at rest stays still unless a force acts on it, and a moving object continues in a straight line unless acted upon by a force. Thus, understanding one-dimensional motion involves analyzing these changes in position, speed, and forces to predict future behavior accurately.