Tag
Circular Motion
Entries tagged circular motion.
3 entries
Concept
Acceleration
Acceleration is the rate of change of velocity, and because velocity has both a size and a direction, an object accelerates whenever it speeds up, slows down, or merely changes direction, even at constant speed.
7 min
ConceptAngles, rotation, and radians
A radian measures rotation as the arc length it sweeps out divided by the radius, a definition that makes the same amount of turning read identically on any size circle.
6 min
ConceptCircular motion and inward acceleration
Moving at constant speed along a circle still requires acceleration, because velocity's direction is constantly changing, and that acceleration always points toward the center.
7 min