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the displacement (in meteers) of a particle moving in a straight line is given by s=t^2-8t+18 where t is measu?

s=t^2-8t+18 where t is measured in seconds. Find average velocity over each time interval [3,4]

I use v(a)=lim h-0 f(a+h)-f(a)/h = lim h-0 1(a+h)^2-1^2/h Am I on the right track???

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    Lv 4
    1 decade ago
    Favorite Answer

    It really depends on how we define average velocity, but let's keep it simple

    s'(t) = 2t - 8

    s'(3) = -2

    s'(4) = 0

    0 + -2/2 = -1

    So the average velocity is -1m/s

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