Question

Question #3b0cc

Answer 1

I've found `34.3 "m/s"`.

Explanation:

`V = V_o + at`

so, `60 = 0 + a . 8`

then, the acceleration is:

`a = 60 / 8 = 7.5 "m/s"^2`

Now:

`V = 2.8 + (7.5 . 4.2) = 34.3 "m/s"`.