The position of a particle as a function of time is given by x(t) = (3.1 m/s)t - (4.2 m/s^2)t^2. What is the average velocity of the particle between t = 1.0 s and t = 2.0 s?

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We can compute the position of this particle when t=1 and ...

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Succinct, clear calculations show how to find a particle's velocity given its position function.

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