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Question

Convert 25 miles per hour to feet per second. (1 mile = 5280 feet and 1 hour = 3600 seconds)

Answer 1

Convert miles to feet and hours to seconds, and then divide:

 

25 miles per hour = (25 miles) / (1 hour) 

 

= (25 miles x 5280 feet/mile) / (1 hour x 3600 seconds/hour)

 

= (25 x 5280 feet) / (1 x 3600 seconds) ≅ 36.67 feet/second