The fastest sustained runner is the pronghorn antelope, capable of running at 55 min/h for 1/2 mile. How long does it take this antelope to run the. 1/2 mile?

.5 mi / 55 mi/hr = 0.009 hr, or about 32 seconds

To calculate the time it takes for the pronghorn antelope to run half a mile, we need to use the formula:

Time = Distance / Speed

In this case, the distance is 0.5 miles (half a mile), and the speed is 55 miles per hour. Let's substitute these values into the formula:

Time = 0.5 miles / 55 miles per hour

To solve, we divide 0.5 by 55:

Time = 0.0091 hours

However, it is more useful to express the time in a format that is easier to understand. There are 60 minutes in an hour, so let's convert the time from hours to minutes:

Time = 0.0091 hours * 60 minutes per hour

This simplifies to:

Time = 0.546 minutes

Therefore, it takes the pronghorn antelope approximately 0.546 minutes to run half a mile.