Question

how long does it take an sr - 71 blackbird, one of the fastest u.s. jets, to make a surveillance run of 11,140 miles if it travels at an average speed of mach 3 (2228 mph). how long does the surveillance run take? hours

Explanation:

Step1: Recall the time - distance - speed formula

The formula is $t=\frac{d}{s}$, where $t$ is time, $d$ is distance, and $s$ is speed.

Step2: Substitute the given values

Given $d = 11140$ miles and $s=2228$ mph. Then $t=\frac{11140}{2228}$.

Step3: Calculate the time

$\frac{11140}{2228}=5$ hours.

Answer:

5