Speed at 3000 etc.

["G. Brierton" <gbrierton@hotmail.com>]

As any rally-ist will remind you (over and over):


                        Distance (miles)

Speed (mph) = --------------------      times 3600    (S = D/T  x 3600)

                        Time (seconds)



 For example:

60 mph = 60 miles / 1 hour (60sec x 60 min=3600) x3600

40 mph = 1mile / 90 sec x 3600



or



 Time to travel 1 mile in seconds at a given speed = 3600 divided by the
speed



For example:

40 mph = 3600 / 40 = 90 sec to go 1 mile

50 mph = 3600 / 50 = 72 sec to go 1 mile



 or



Time to travel 1 mile in seconds divided into 3600 = your average speed for
that mile



GaryB