You are at rest with respect to the car.
You are in motion with respect to the School.
Answer:

Explanation:
<u>Average Acceleration
</u>
Acceleration is a physical magnitude defined as the change of velocity over time. When we have experimental data, we can compute it by calculating the slope of the line in velocity vs time graph.
Note: <em>We cannot see if the time axis is numbered in increments of 1 second, and we'll assume that.
</em>
When
, the graph shows a value of
When
, the object is at rest, 
We compute the average acceleration as




The other 4 kg of mass may have departed the scene
of the fire, in the form of gases and smoke particles.
A
Excitation to a higher energy state requires energy which is absorbed from the electromagnetic waves applied.