Final answer:
To determine the time it will take for the car to travel 800 meters, we need to convert the speed from miles per hour to meters per second. The car's speed is 15 miles per hour. Converting this to meters per second, we find that it is approximately 6.70 meters per second. Dividing the distance of 800 meters by the speed, we find that it will take approximately 119.40 seconds for the car to travel 800 meters.
Step-by-step explanation:
In order to determine the time it will take for the car to travel 800 meters, we need to analyze the units in the problem. The car's speed is given in miles per hour, but we need to convert it to a unit that matches the distance given in meters.
First, we convert the speed from miles per hour to meters per second. One mile is equivalent to 1609.34 meters and one hour is equivalent to 3600 seconds.
So, the car's speed in meters per second would be: 15 miles per hour * (1609.34 meters / 1 mile) * (1 hour / 3600 seconds) = 6.70 meters per second.
To find the time it will take the car to travel 800 meters, we divide the distance by the speed: 800 meters / 6.70 meters per second = 119.40 seconds.
Therefore, it will take approximately 119.40 seconds for the car to travel 800 meters at a speed of 15 miles per hour.