Answer:
Car speed is 79.2 feet per second.
Car will travel the distance of 396 feet in 5 seconds.
Explanation:
Given speed of car is 54 mph
We need to find the speed of car in feet per second
Now we know that,
1 miles = 5280 feet
1 hour = 3600 sec
hence 54 mph =

Car speed is 79.2 feet per second.
Now we need to find the distance in 5 seconds
Distance = Speed
time =

Hence Car will travel the distance of 396 feet in 5 seconds.