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Velocity Vectors
8 cards·by jennybakalov
speed
how fast an object moves; the distance traveled per unit of time
instantaneous speed
the speed at any instant
average speed
the total distance traveled divided by the time of travel
velocity
an object's speed and direction of motion
vector quantity
a quantity that has both magnitude and direction
scalar quantity
a quantity that has only a magnitude, not direction
acceleration
the rate at which velocity changes with time; the change in velocity may be in magnitude, or
direction, or both
free fall
motion under the influence of gravity alone