The average speed of a car on a stretch of interstate is 70 miles per hour. Convert this rate into feet per second.

Answer 1

To do conversion change miles into feet and hour into second

One foot is 5280 feet

And an hour is 3600sec

70 miles

Hour

70 * 5280feet

3600 second

369600 feet

3600seconds

Then simplify

102. 66 feet

Second