Assuming that the unit t used is minutes after 1.:05, when the time is 1:07 P.M. the value of t would be: 1:07 - 1:05= 2 s(2)= 6(2)^2 + (2) + 8 = 34 when the time is 1:09 P.M. the value of t would be: 1:09 - 1:05= 4 s(4) = 6(4)^2 + (4) + 8= 108
Then, the function for average velocity would be: average velocity= total distance/time s(4)-s(2)/4-2= (108- 34) /2= 74/2= 37m/s