Answer:
Step-by-step explanation:
Givens
To find the distance in feet, we need to transform, because, we have the speed in miles per hour, and we need to work with feet and seconds.
We know that 1 mile is 5280 feet, and 1 hour is 3600 seconds. We use this to transform the speed
[tex]600\frac{mi}{hr}\frac{1hr}{3600sec}\frac{5280ft}{1mi}= 880 ft/sec[/tex]
Now, the airplane is traveling at a constant speed. So, the movement can be described as
[tex]d=st[/tex], where [tex]d[/tex] is distance, [tex]s[/tex] is speed and [tex]t[/tex] is time.
Replacing all values, we have
[tex]d=880ft/sec(9sec)=7,920ft[/tex]
Therefore, the airplane will travel 7,920 feet in 9 seconds.