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Question

What is the average velocity during time interval t=2 s to t=5 s, in the following position time curve?

A
2 m/s
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B
23 m/s
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C
1.2 m/s
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D
0.4 m/s
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Solution

The correct option is B 23 m/s
Average velocity can be calculated from a position-time graph as change in position divided by the corresponding change in time.
Average velocity for the time interval (t=2 s to t=5 s) is

=ΔxΔt=6452=23 m/s

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