Question

The altitude of an airplane is decreasing at a rate of 43 feet per second. What is the change in altitude of the airplane over a period of 44 seconds?
A.
-87 feet
B.
87 feet
C.
1,892 feet
D.
-1,892 feet

Answer 1

To find the change in altitude over a period of 44 seconds where the altitude is decreasing at a rate of 43 feet per second, you can use the formula:

\[
\text{Change in altitude} = \text{rate} \times \text{time}
\]

Here, the rate is -43 feet per second (since the altitude is decreasing) and the time is 44 seconds. So:

\[
\text{Change in altitude} = -43 \, \text{feet/second} \times 44 \, \text{seconds} = -1,892 \, \text{feet}
\]

The change in altitude of the airplane over a period of 44 seconds is:

D. -1,892 feet