Physics Chapter 2 Motion
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In physics, how fast something happens, or how much something changes per unit of time; a change in a quantity divided by the time it takes for the change to occur.
Regarded in relation to something else. Depends on point of view, or frame of reference. Sometimes referred to as "with respect to."
How fast something is moving; the path distance moved per time. The magnitude of the velocity vector.
Speed at any instant of time.
Path distance divided by time interval
Speed together with the direction of motion.
The rate at which velocity is changing. The change may be in magnitude, direction, or both.
Motion under the influence of the gravitational force only.
The time that has passed since beginning of an event.
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