Think of it this way. If I go 2250 miles per hour, how many miles do I go in one minute? 2250 / 60 = 37.5 miles. If I go 37.5 miles in one minute, how many miles do I go in one second? 37.5 / 60 = .625 Wrong answer - the proof for your method fails.
Now try it for 5760. 5760 / 60 = 96 miles per minute. 96 / 60 = 1.6 miles/second. QED.
Stay away from that 5th grader show.
WAKE UP!!!
“..flying a mile every 1.6 seconds..”
NOT 1.6 miles per second!!!!!!