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VELOCITY EQUATIONS HERE Intro to Motion + Speed and Velocity,
Section 2 -…
VELOCITY EQUATIONS HERE Intro to Motion + Speed and Velocity,
Section 2
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Distance and Location
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ref. point on number line = 0, standard unit = meter
Displacement
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distance = how far an object travels (measurement w/ no direction0 and displacement is how far an object is from where it started (change in position that includes direction)
distance can have a positive value, at the same time that displacement can be zero
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Velocity
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displacement includes direction, so velocity also includes a direction (speed with direction)
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Speed Formula
Meters divided by seconds gives a unit of meters per second, m/s for speed
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speed = distance travelled per unit of time or distance divided by time distance can be measured in meters, time in seconds
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Time
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when speed or velocity and distance or displacement are known, time can be found
on graph, time is always on x axis
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Direction Changes
A direction change = represented when line on graph changes from positive slope to negative or vice versa
negative slope indicates object moving through origin, positive indicates object moving away from origin