Question

A car is heading North at 18 m/s.

The driver flicks the wheel, and within 3 seconds he has the car headed South at 12
m/s.
What is the acceleration?

Answer 1

10 m/s south

Step-by-step explanation:

From 18 m/s North to 12 m/s South is a total change of 30 m/s towards the South.

So, Change in velocity = 30 m/s South

Time = 3 s

30/3=10 so 10 m/s South