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A car's position vs. time graph is a straight line passing through the point (0.50 s, 525 m) and the point (6.4 s, 2000 m). What is the car's average velocity?
A25 m/s
B82 m/s
C250 m/s
D340 m/s
Answer & Solution
Correct answer: C. 250 m/s
1. The slope of a straight-line position vs. time graph is the average velocity.
2. v = (2000 m - 525 m) / (6.4 s - 0.50 s).
3. v = 1475 m / 5.9 s = 250 m/s.
_Source: OpenStax Physics (CC BY 4.0), Ch 2 "Motion in One Dimension", section 2.3 Position vs. Time Graphs_
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