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Summary to Graphing
d-t graph
- Uniform Motion
- straight diagonal
- Slope = Vav = Vinst
- + Slope motion is right or up
- - Slope motion is left or down
- Line above time axis means + displacement
- Line below time axis means - displacement
- Uniform Acceleration
- Curved line
- upward curve means + acceleration
- downware curve means - acceleration
- Slope of tangent = Vinst
- Slope of chord = Vav
- Line above time axis means + displacement
- Line below time axis means - displacement
v-t graph
- Uniform Motion
- Straight horizontal line
- Slope = acceleration
- + Slope = + acceleration
- - Slope = - acceleration
- Area between the line and the time axis = Change in Displacement
- Area below time axis is negative
- Area above time axis is positive
- Line above the time axis means motion is +
- Line below the time axis means motion is -
- Uniform acceleration
- Straight diagonal line
- Slope = the acceleration
- + Slope = + acceleration
- - Slope = - acceleration
- Area between the line and the time axis is change in displacement
- Area above the time axis is + change in displacement
- Area below the time axis is - change in displacement
- Line above the time axis means motion is +
- Line below the time axis means motion is -
a-t Graph
- Uniform Motion
- acceleration = 0
- Line is on the time axis
- Uniform Acceleration
- Straigth horizontal line intercepting the vertical axis at the acceleration
- Area between the line and the time axis is the change in velocity.
- Area above the time axis is + change in velocity
- Area below the time axis is - change in velocity
- Line above the time axis means + acceleration
- Line below the time axis means - acceleration
October 29, 2013
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