Answer:
D. -924 feet
Step-by-step explanation:
<h3><u>Necessary formula</u></h3>
For this problem, we'll need the relationship where "d" is the distance traveled, "v" is the velocity the object is traveling, and "t" is the amount of time that it traveled.
<h3><u>Velocity Vectors</u></h3>
Velocity is a "vector" quantity, which has both a magnitude and a direction. The magnitude is the speed (42 feet per second) and the direction is downward. Collectively, the velocity is -42 feet per second. This will address the change in altitude and signify that the change in altitude is downward.
<h3><u>
Units</u></h3>
All quantities should be using units that match.
In this case, the <u>distances</u> provided in the answers are all measured in <u>feet</u>, and the speeds are measured in <u>feet</u> per second, so the feet match.
Also, the <u>times</u> are measured in <u>seconds</u>, and the speeds are measured in feet per <u>second</u>, those also match.
<h3><u>Substitution & solve</u></h3>
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