Senior Secondary · 11-12 · Physics
What is centripetal force?
The net force that keeps an object moving in a circular path, always directed toward the center of the circle
What is centripetal acceleration?
The acceleration of an object moving in a circle, directed toward the center, caused by the constantly changing direction of velocity
What is the formula for centripetal acceleration?
a = v² ÷ r, where v is speed and r is the radius of the circular path
In which direction does centripetal force point?
Toward the center of the circular path
What happens to an object's velocity direction as it moves in a circle, even at constant speed?
It continuously changes direction, which means the object is accelerating even though its speed stays the same
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