Introductory Classical Mechanics/Position, velocity, speed, and acceleration
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[edit] Position
The position of any object is the place where we can find it at any constant time.
[edit] Velocity and speed
Speed is the change of position with respect to every successful unit of time. Velocity is the same but we must mention the direction of the moving object. Speed is a scalar while velocity is a vector. Scalar is a quantity with magnitude but no direction. Vector is a quantity with both magnitude and direction.
[edit] Acceleration
Acceleration is the change of the velocity with respect to time.

