Easy# Acceleration from Velocity: Polynomial Function

APPHMC-W6N19W

A motorized toy car is moving in one dimension, with a velocity $v(t)= 2{ t }^{ 2 }-7t-5$. The velocity is in $m/s$, when $t$ is measured in seconds.

Determine the car's acceleration at $t=5.0\text{ }s$.