Time Speed Distance

[Rob R]

If one is running behind faster bikes, lets say 150 and car is 1/2 mile in distance going 70mph . how much time does one have to check mirror and move to left lane?

 

[v65]

If one is running behind faster bikes, lets say 150 and car is 1/2 mile in distance going 70mph . how much time does one have to check mirror and move to left lane?

Ignoring relativity, the speed difference between the two vehicles is 80mph. At 80mph you will go one mile in 1/80 hours, or 60/80 = 3/4 minute = 45 seconds. To go 1/2 mile will take you half that time:

22.5 seconds.

You've got plenty of time, crank it up a bit.