A limousine driver notices a stop sign while traveling 55 km/h. What is the acceleration (in m/s) of the limousine if it comes to a complete
stop in 4.3 52
Interpret the sign of the acceleration - what does it mean?

a= -12.64 m/s²

The negative sign means deceleration, which shows that the limousine was slowing down to stop.

Explanation:

The formula for acceleration is :

a= change in velocity / time

where;

a= 0-55 /4.352 = -55/4.352 = -12.64 m/s²

The negative sign means deceleration, which shows that the limousine was slowing down to stop.

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