Kinematics-Princeton AP Physics I

Free Fall

An object can fall experiencing only acceleration due to gravity.

Velocity

The single concept that embodies both speed and direction

Displacement

an object’s change in position; It’s the vector that points from the object’s initial position to its final position, regardless of the path actually taken.

Average speed

the ratio of the total distance traveled to the time required to cover that distance

tangent

a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point