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by Tony Wayne
Last updated 9/26/00
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The average velocity is found by:
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The average velocity is found by: From a v vs t graph:
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The average velocity is found by calculating the "AREA"
between the curve and the axis from |
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The instantaneous velocity is the slope at that point in time. (If you are given a curve find the slope of a tangent line.) |
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Read the graph's vertical axis at time t. |
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Since and the slope of this graph equals the velocity, acceleration is the where the slope changes. This occurs on the curved regions. Segments "A" and "C" are regions of acceleration. Segments B, D & E are constant velocities. |
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To calculate the acceleration, find the slope. Straight lines are regions of CONSTANT ACCELERATIONS. Line segments B, C, D, E, & F are constant accelerations. "A" is a changing acceleration because the slope changes. "B" and "D" are constant accelerations but have an value of ZERO. |
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Read the graph at time, t. |