To convert inches per second to feet per second, you can use the conversion factor that 1 foot is equal to 12 inches.
Given the cruising speed of the airplane is 9,944 inches per second, you can convert this to feet per second as follows:
\[ \text{Feet per second} = \frac{\text{Inches per second}}{12} \]
So,
\[ \text{Feet per second} = \frac{9,944}{12} \approx 828.67 \text{ feet per second} \]
Rounding this to the nearest foot per second gives:
\[ \approx 829 \text{ feet per second} \]
Therefore, the speed of the 747 airplane to the nearest foot per second is 829 feet per second.
2 answers