80 miles per hour equates to 117.3 feet per second.
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That is 146.7 feet per second.
44 feet/second (1 mile/5280 feet)(3600 seconds/1 hour) = 30 mph =======
Since there are 3600 seconds in one hour, then we have: x/87 = 1/3600 cross multiply 3600x = 87 divide by 3600 to both sides x = 0.024 Thus, in one second you can travel 0.024 miles, and in 12 seconds you have traveled 0.29 miles (12 x 0.024).
There are 5,280 feet in a mile. Therefore, at 7 miles an hour, you would be traveling at 7 * 5,280 = 36,960 feet per hour. Now convert hours to minutes: 36,960 / 60 = 616 feet per minute. Now convert minutes to seconds: 616 / 60 = 10.27 feet per second.
300 x 3600 = feet per hour, divided by 5280 = miles per hour = 204 and 6/11 mph