Question

A car intially traveling at 83.1 mi/h, slows to rest in 9.3s . What is the cars acceleration.

Answer 1

$83.1\ mi/h=133.74\ km/h=37.15\ m/s$

$v=v_0-at\to a=v_0/t=37.15/9.3\approx4\ (m/s^2)$ . Answer