1. The problem statement, all variables and given/known data A construction worker drops a bolt while working on a high-rise building 320m above the ground. After t seconds, the bolt has fallen a distance of s metres, where s(t) = 320-5t^2, 0 <= t <=8 Find the average velocity for the interval 3<=y<=8 2. Relevant equations 3. The attempt at a solution I used the formulas [tex]\Delta[/tex]s / [tex]\Delta[/tex]t which then = s(8) - s(3) / (8-3) ~ ~ =55 Is this right?