Question

calculating average velocity

Answer 1

After t seconds the displacement, s(t), of a particle moving rightwards along the x-axis is given (in feet) by
s(t) = 5t2 −8t+2. Determine the average velocity of the particle over the time interval
[1, 2].

Answer 2

i think you are supposed to compute
\[\frac{f(2)-f(1)}{2-1}\] maybe

Answer 3

is the answer 7 ft/sec ?

Answer 4

@satellite73 yeah that's what I used.

Answer 5

since the denominator is conveniently 1, this amount to \(s(2)-s(1)\)

Answer 6

looks like 7 is right \(s(2)=6,s(1)=-1\)

Answer 7

great. thank you!