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Speed Vav - average speed V1 - instantaneous speed at time 1 V2 - instantaneous speed at time 2 t1 - time 1 t2 - time 2 /d - delta distance; distance between two points; distance travelled / - time taken Relating speed to distance and time quantity symbols are always typed in italics quantity symbols are found in equations unit symbols are found with values instantaneous speed is not affected by previous speed or by how long it has been moving speedometer measures instantaneous speed constant speed - remains the same over a period of time Instantaneous speed if an object is moving at a constant speed, then the distance versus time graph is a straight line.
Approximate Word count = 403
Approximate Pages = 1.6
(250 words per page double spaced)
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