Question

If I'm in a car that starts out at `12` `m``/``sec` and accelerates at `4``m``/``sec^2` for `7` seconds, how fast will it be moving?

Answer 1

`"40 m/s"`

Explanation:

`"v = u + at"`

`"v" = "12 m/s" + ("4 m/s"^2 × "7 s") = "40 m/s"`

Velocity after 7 seconds is `"40 m/s"`