Question

At t = 0, a car has a speed of 30.0 m/s. At t=6.00 s, its velocity is 12.0 m/s.
What is its average acceleration during this interval? plz help...​

Answer 1

Answer: $-3m/s$

Explanation:

$a=\frac{V_2-V_1}{t}$

$a=\frac{12-30m}{6s}\\a=-\frac{18m}{6s}\\ a=-3m/s$

We have a negative acceleration, meaning that the car is slowing down.