A particle is moving with velocity v[t} = t2 9t + 18 with distance, 3 measured in meters, left or right of zero, and t measured in seconds, with t between 0 and 8 seconds inclusive. The position at time t = 0 sec is 1 meter right of zero, that is, 5(0) = 1. 1. The average velocity over the interval 0 to 8 seconds 2. The instantaneous velocity and speed at time 5 secs