SOLUTION: expected to maintain an average speed of 60 mph for 2 miles, unfortunately engine develops a miss can only maintain 30 mph for the first mile. How fast must you drive the second mi

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Question 343482: expected to maintain an average speed of 60 mph for 2 miles, unfortunately engine develops a miss can only maintain 30 mph for the first mile. How fast must you drive the second mile to meet overall average speed requirement?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Impossible. To maintain an average speed of 60 miles per hour for 2 miles, you must cover the 2 miles in 2 minutes. But if you only go 30 miles per hour for the first mile, it takes you 2 minutes to complete that first mile. That leaves you 0 time to cover the second mile. In order to travel one mile in 0 minutes you must go infinitely fast. Like I said, impossible.

John

My calculator said it, I believe it, that settles it