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Homework Help: Find the average speed from t = 0 to t = 1 s

  1. Jan 27, 2013 #1
    1. The problem statement, all variables and given/known data

    The position of a particle as a function of time is given by x = (6 m/s)t + (-2 m/s^2)t^2.

    Find the average speed from t = 0 to t = 1 s


    Also, how would I plot x versus t for t = 0 to t = 2 s?

    2. Relevant equations

    average speed = ΔV/Δt

    Part A: t=1s

    3. The attempt at a solution

    I have not a clue.
  2. jcsd
  3. Jan 27, 2013 #2
    1) Average speed is Δx/Δt
    - Consider evaluating the position function both at t= 1s and t = 0s to be able to calculate Avg Speed
    2) If you struggle with plotting points on a graph, try starting with an x/y chart
    For instance:
    t (s) x(t)
    0 6(0) - 2(0)^2
    and in general:
    t 6t - 2t^2

    Take these points and plot them as (t, x(t)), with t as the x-axis and x(t) as the y-axis.
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