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9 Cards in this Set

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  • Back
position
the location of the particle with respect to a chosen reference point that we can consider to be the origin of a coordinate system
displacement (of a particle)
the change in position (Δx=xf-xi) in some time interval
distance
the length of a path followed by a particle
vector quantity
requires the specification of both direction and magnitude
scalar quantity
numerical value and no direction
average velocity (of a particle)
the particles displacement (Δx) divided by the time interval (Δt)
p27
average speed
the total distance travelled divided by the total time interval required to travel that distance
(instantaneous) velocity
the limiting value of the ratio Δx/Δt as Δt approaches 0. also called the derivative of x with respect to t, written as dx/dt.
p29(2.4)(2.5)
instantaneous speed
the magnitude of its instantaneous velocity
(no direction and no algebraic sign)