Question 153613
you are right, Jay __ you need to keep the units consistent


converting miles per hour to feet per second
__ 60 seconds per minute, 60 minutes per hour __ so 60*60 or 3600 seconds per hour
__ 5280 feet in a mile
__ so feet per second equals miles per hour times 5280/3600


90 mph equals 132 fps __ so the time to the plate is 60.5/132