<em>Question:</em>
<em>Daredevil Danny was cliff jumping. He jumped off a cliff that was 14.2 meters above the surface of the water. At the end of his jump, Danny was 2.3 meters below the surface of the water.
</em>
<em>The following equation describes this situation 14.2 + (-16,5) = -2.3
.</em>
<em>What does -16.5 tell us?</em>
<em></em>
Answer:
The displacement between his current position and his initial position
Step-by-step explanation:
Given
![Initial\ Position = 14.2m](https://tex.z-dn.net/?f=Initial%5C%20Position%20%3D%2014.2m)
![Final\ Position = -2.3m](https://tex.z-dn.net/?f=Final%5C%20Position%20%3D%20-2.3m)
![14.2 + (-16.5) = -2.3](https://tex.z-dn.net/?f=14.2%20%2B%20%28-16.5%29%20%3D%20-2.3)
Required
What does -16.5 represents?
<em>To understand this, we need to first calculate the displacement between his initial and final position</em>
<em></em>
![Displacement = Final\ Position - Initial\ Position](https://tex.z-dn.net/?f=Displacement%20%3D%20Final%5C%20Position%20-%20Initial%5C%20Position)
![Displacement = -2.3m - 14.2m](https://tex.z-dn.net/?f=Displacement%20%3D%20-2.3m%20-%2014.2m)
![Displacement = - 16.5m](https://tex.z-dn.net/?f=Displacement%20%3D%20-%2016.5m)
<em>So: -16.5m is the total displacement from the start position (i.e. off the cliff) and current position (beneath the water surface)</em>