Question

1. a car speeds up from 12 m/s to 36 m/s in 0.5 minutes. what is its acceleration in m/s²?

Explanation:

Step1: Convert time to seconds

0.5 minutes = 0.5×60 s = 30 s

Step2: Use acceleration formula

The acceleration formula is $a=\frac{v - u}{t}$, where $v$ is final - velocity, $u$ is initial - velocity and $t$ is time. Here, $u = 12$ m/s, $v = 36$ m/s and $t = 30$ s.
$a=\frac{36 - 12}{30}$
$a=\frac{24}{30}=0.8$ m/s²

Answer:

0.8 m/s²