How many feet per second does twenty miles per hour convert to?

To convert miles per hour to feet per second, you can use the following conversion factors:

1 mile is equal to 5,280 feet, and 1 hour is equal to 3,600 seconds.

First, start with the speed of twenty miles per hour:

1. Convert miles to feet:

   • 20 miles × 5,280 feet/mile = 105,600 feet

2. Convert hours to seconds:

   • 1 hour = 3,600 seconds

Now, calculate the speed in feet per second:

• Divide the total feet by the number of seconds:
  • 105,600 feet ÷ 3,600 seconds = 29.33 feet per second

When rounding this value, it approximates to 30 feet per second. This means that twenty miles per hour is equivalent to about 30 feet per second, making that the correct answer. Thus, the answer aligns with the conversion calculations demonstrating the relationship between two different units of speed.