Hello, Jeavus!

There is a typo in the problem . . .

TheA construction worker drops a bolt while working on a 320-m building.

After seconds, the bolt has fallen a distance of metres,

where: . . . . . This is incorrect

a. Find the avg. velocity during the first, third, and eighth seconds.

b. Find the avg. velocity for the interval 3 < t < 8.

c. Find the velocity at t = 2.heightof the bolt at time is: .

a) At

. . At

In the first second, it has fallen: .

. . Its average velocity is: .

At

At

In the third second, it has fallen: .

. . Its average velocity is: .

At

At

In the eighth second, it has fallen: .

. . Its average velocity is: .

The bolt fell: . in 5 seconds.

. . Its average velocity is: .

c) For velocity: .

. . At

(The minus indicates adownwardvelocity.)

.