Final answer:
The velocity of the car is approximately 27 miles per hour.
Step-by-step explanation:
The velocity of the car can be found by dividing the distance traveled by the time taken. To convert the distance of 100 feet to miles, we divide by 5280 feet (since 1 mile = 5280 feet).
To convert the time of 2.8 seconds to hours, we divide by 3600 seconds (since 1 hour = 3600 seconds). Then, we divide the distance in miles by the time in hours to find the velocity in miles per hour.
Using the given values, the velocity of the car is approximately 27 miles per hour.